Heater blowing cold air?

Tiny
JUSTOUTOFTIME
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  • 1998 FORD F-150
  • V8
  • 1,500,000 MILES
Heater blowing cold air, first day took truck to shop, was running great. I had been driving the truck without a heater on and heat gauge in the truck was always where it was supposed to be. It never overheated. Got a call from the shop 4 days later that said it was bad water pump. So, replaced that and they flushed out the heater core but still no heat came out inside the truck said motor was about to go in it because it was an old truck. Got a call from shop on the 7th day said I could drive it but there would be no hot air coming from the heater. I paid him $700.00 but didn't drive it home that night because I used somebody else's car to go pay him. So, I left it. The next day I went to pick it up and I couldn't drive it out of the lot. It sounded like only running on two cylinders sputtered and backfired and shut off. I asked the shop what did they do? He told me that it had blown a head gasket and the motor was shot. I'm not completely dumb I know how the system works on motors. Then I found out that they had driven it to another shop and had them work on it without telling me. So, my question is, could a new water pump, new thermostat that worked, flushing out heater core, cause it to overheat enough to blow a head gasket and ruin the motor? The shop is dancing around saying all kinds of mumbo jumbo caused it. That it is an old truck and motor had all kinds of crap in it. 8 months back the shop put in a new heater core, new radiator, thermostat, coolant, hose from radiator to motor. If you are working on a vehicle cooling system in a shop, why would you let it run so long that it would blow a head gasket without checking heat gauge? I think they ruined my truck by driving it too hot from other shop to the other. Need help bad, what are your thoughts? Mine is get a lawyer. Bottom line is I'm losing hours of work every day it sits there then probably my job. Do you think the mechanics messed it up and are trying to cover themselves by saying something else caused the problem?
Saturday, November 26th, 2022 AT 4:21 AM

29 Replies

Tiny
JACOBANDNICKOLAS
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Hi,

This is a tough question to answer. A new water pump and thermostat shouldn't have caused it to overheat or for a head gasket to fail. They may not have properly bled the air out of the system which could cause it to happen.

Just for curiosity, is the check engine light flashing or staying on when the engine is running? If it is, have you scanned the computer to retrieve the codes? I ask because I wonder if there is a misfire on both sides of the engine or if it is on one side. If one side failed, I would think if the head gaskets are the issue, they would have noticed the difference when the first side failed to prompting them to turn the engine off before further damage.

Also, is there any thick white smoke from the exhaust or evidence of the coolant mixing with the engine coolant? Take a look through this link and let me know if any of the things mentioned mirror what you experience:

https://www.2carpros.com/articles/head-gasket-blown-test

Let me know. Also, let me know if you are able to perform a compression test on the engine.

Take care,

Joe
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Saturday, November 26th, 2022 AT 11:58 PM
Tiny
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Thanks Joe for your time. The only things I can tell you are what they tell me. I didnt get to see them work on it because they drove it to another shop to have it worked on by a different mechanic and I wasnt told they did that. So im up in the air about what all they did to my truck.
The owner of the shop that I took it to originally called and said this morning, your truck is running come pick it up. I was happy to hear that. I went to pick it up and I tried to start it but it wouldn't stay running. I tried to rev it up but it would just sputter and cough like it did when they told me to come get the truck 5 days ago. When I reved it up it would sputter. When I let off the gas it would run smooth for about 8 seconds then sputter and chug, so that tells me that the head gasket may not be blown and I didnt see any white smoke coming from tail pipe. I would pump the gas (tap the gas peddle not floor it) and would sputter and chug then I let off the gas and would run smooth for a few seconds then same thing over and over. I still cant drive it away from the auto shop lot. It would die on me before I could put it in drive. I swear Joe if that truck would have run for about 10 minutes I would have drove through the shop and leveled the whole thing. I cant seem to get the owner to talk to me and tell me what work he has done to the truck other than put water pump, thermostat, flush out heater core, because there are so many people talking to him about there vehicles. He is snowed under with cars and trucks and only 3 people, actually 2, his sons the owner is always on the phone or gone getting parts. I dont really think he can tell me what other things they did like compression checks cause somebody else across town did the the work. I think it has jumped time or its not firing on all cylinders. Man I wish I could tell you what they did from the time I took it in to today (monday) but I cant. It would help you guys to understand the problem better so that you could give the best advise to try and fix it.
Joe, you and your other guys (crew) who take time out to help people. My hat is off to you, you are tops in my book. I will try and get as much info on what work they did so that you'll know and what solution they came up with to get it fixed. I'll keep you posted until its done. Thanks
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Monday, November 28th, 2022 AT 8:20 PM
Tiny
JACOBANDNICKOLAS
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Hi,

You are very welcome. What you described sounds either like a fuel pressure issue or a sensor issue such as a mass air flow sensor. I would be so frustrated. LOL and want to take the same drive you mentioned. LOL

Let me know what they tell you. Hopefully, we can get some resolution.

Take care,

Joe
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Monday, November 28th, 2022 AT 8:45 PM
Tiny
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I will let you know and thanks for your input. Just from what you say sounds like you know what the heck you're doing and have worked on many of these issues. This whole thing is like going to war and they have all the weapons. With your input I feel I at least have a chance I'll stay on it until this issue is resolved. I appreciate you, Joe.
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Monday, November 28th, 2022 AT 10:57 PM
Tiny
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Hi Joe,

It sickens me to tell you. That the mechanic told my brother that the motor in my 1998 f150 Ford Triton with a hundred fifty thousand miles ran great when I drove it to the shop. It ran fine when they drove it way across town to get parts and have some other mechanic work on it, drove it back to the shop who was originally going to work on it.
I cant' get the owner of the shop to tell me what all they did to my truck. Or the other guys name who worked on my truck. When I call him, he gets really grumbly and has a short wick and blows up. The last words he told me was after I asked him what he was going to do to get my truck running. He said, I don't know. Im tired of working on it.I give up. Im ready to walk away from it.
I about lost it. That's like a doctor operating on you and has you cut wide open trying to do a bypass on your heart, then the doc leans over you and says, I don't know. I'm tired of working on you, I give up. I'm walking away from it. You don't say things like that to your clients, that wasn't very business like.
Joe,
I'm calling a lawyer in the morning because this whole issue doesn't smell right. Joe" what would be the first thing to go if you drove a truck/car that overheated if water pump didn't work, or the thermostat, or coolant too low in radiator. Would it most likely be the head gasket to go first? " Another question" if the truck was over heating wouldn't you hear the radiator boiling, hissing, gurgling, popping and thumping sounds and shut the truck/car off before it did damage? What happens to the motor if you continue driving after a truck/car has overheated and blown a head gasket? Need your input. Thanks for your time.
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Thursday, December 1st, 2022 AT 7:55 PM
Tiny
JACOBANDNICKOLAS
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Hi,

If it is overheating, you will start losing power first. In most cases, there will be steam coming from the engine compartment and in some cases, you will hear a thumping sound as the coolant boils. Also, the radiator cap will release at a certain pressure allowing coolant to exit the radiator and enter the overflow reservoir. Usually, the reservoir won't hold it all and will spill over.

As far as the results, the cylinder head gaskets are usually the first to fail due to pressure and warping. Additionally, if it gets hot enough, the oil loses its ability to properly lubricate the engine and it could lock up. I would have to say it would lose power and shut down first, but it can happen.

I feel really bad for you. I wish I had an easy answer. I had a 1999 Expedition with the 5.4L Triton and got rid of it at approximately 250,000 miles. Not because it didn't run, but rather, I got rid of it due to rust.

Let me know how things turn out for you or if you have additional questions.

Take care,

Joe
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Thursday, December 1st, 2022 AT 9:30 PM
Tiny
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Thanks, Joe, for getting back to me on this. I would like to ask you if I have permission to use what information/input you and I have talked about on the situation with my Ford truck. I may have to use it in court if it goes there. I would bet my life on it being mechanical neglect I don't care how they slice it dice it or say that something else caused it they ruined that truck, and it is now junk. I'm leaving it sit there as long as I can as a yard ornament until it rusts to the ground cause I don't have the means to move it anywhere.
Oh, I didn't tell you about my 2006 Chevy Colorado 4 wheel drive truck that locked up on me when I drove it and pumped out all the oil on the road. I found the oil filter on the frame of that truck. Wasn't screwed on tight. Same shop I took it too for an oil change and tune up. They said that it was caused by too much oil pressure and it blew off. I had just got that truck nothing wrong with it paid five thousand for it. This man has gotten me for one truck he wouldn't honor and fix. He is not going to get me for another one. If I have any more questions, would you please stay with me on this, I don't have anywhere to go or someone to talk about this. I need to stop this man somehow from doing it to someone else. I'm going to consult with an attorney to see if I have a case.
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Friday, December 2nd, 2022 AT 6:26 AM
Tiny
JACOBANDNICKOLAS
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Hi,

If you have questions, let me know. And yes, you can use what I told you.

As far as the oil filter is concerned, if it was tight, it wouldn't have come off. There is an oil pressure release valve that is designed to prevent too much pressure from building. Even if it failed, it wouldn't have blown the oil filter off the engine.

Actually, I have seen oil filters that were damaged by too much pressure. They were still on the vehicle but swollen.

Take care,

Joe
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Friday, December 2nd, 2022 AT 9:07 PM
Tiny
JUSTOUTOFTIME
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Joe, you're the man, you were the hammer that drove the nail. I showed our conversation texts to my boss via copy and email. Boss said he was going to call the shop and talk to the owner. I don't know what they talked about, but the owner of the shop called and said that he was putting another motor in the truck, and it would be done by the end of the month (Dec) and wouldn't cost me anything. I went down like cutting a tree.
I'm still trying to get up off the floor. Woo Hoo. I Think what you said had an impact like a bomb went off in that shop. Like I said I don't know what my boss said or what they talked about. I'm not going to ask. I'm getting my engine replaced at no cost to me and getting a truck to use while it is getting worked on. If you were here right now i'd shake your hand the rest of the day. Is there a way I can send some money for your time with this issue? You deserve something, without your knowledge I would be SOL. I can't thank you enough.
I will let you know how it goes with the replacement. In the meantime, I'm on my way to get the truck I'm going to use until my truck is done. Lol
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Saturday, December 3rd, 2022 AT 11:21 AM
Tiny
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Hi,

I am so glad to hear this. It makes me feel good as well. I have no idea what they talked about, but the reality is, what they were telling you didn't make sense.

Regardless, I'm glad to know they are doing the right thing. This wasn't your fault, and you shouldn't have had to pay for it.

If you have a chance, let me know how things turn out for you. Also, if I don't hear from you, please feel free to come back at any time in the future. You are always welcome.

Take care,

Joe
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Saturday, December 3rd, 2022 AT 8:23 PM
Tiny
JUSTOUTOFTIME
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Thanks Joe, I will let you know, I have a feeling this isn't over just yet. You are my go to auto pro guy from now on.
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Saturday, December 3rd, 2022 AT 9:04 PM
Tiny
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LOL I'll be here, and you are always welcome to come back.

Take care,

Joe
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Saturday, December 3rd, 2022 AT 9:25 PM
Tiny
JUSTOUTOFTIME
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We have talked about my ford f150 truck that heater was blowing cold air and now have a blown engine in it. Well, I drove by the other day and it;s still sitting in the same spot. Im afraid im not going to get it back for a long time. Or if at all.
There is a question I would like to ask if you could help me with. Is there a oil pressure release on an oil filter on a 2006 chevy Colorado crew cab 4 by 4 or something that would prevent it from coming off and pumping out all the oil? If put on correctly and installed right wouldnt they put the oil filter on and pressure guage it which would make it almost impossible to just fall off?
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Tuesday, December 13th, 2022 AT 8:12 PM
Tiny
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Hi,

That is upsetting. As far as the oil filter is concerned, it won't fall off if it is tightened. Actually, if the oil pressure was extreme, it would have ruptured before coming off.

I'm not sure if you have the 4 or 6-cylinder, but I attached a picture below and highlighted the oil pressure relief valve on the 4 cylinder. There isn't one in the oil filter itself.

Let me know if this helps.

Joe

See pic below.
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Tuesday, December 13th, 2022 AT 8:27 PM
Tiny
JUSTOUTOFTIME
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Mine is 6 CYL.I knew there wasnt one on the oil filter and I agree with you if put on right wouldnt just fall off would rupture. I towed it home in nutural and parked it I thought maybe I could turn the motor over (after I put oil filter back on and new oil in it) took a wrench and put it on front of motor and tried to turn motor over by hand (in nutural) but wouldnt turn. Put a breakover bar and still wouldnt turn. So I took out all spark plugs and sprayed PBR down in the cylinders and am letting it soak. Someone told me to pour 2 cycle gas in the cylinders and fill it up and try turning the motor then but not sure I want to do that.
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Tuesday, December 13th, 2022 AT 8:42 PM
Tiny
JACOBANDNICKOLAS
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Hi,

The idea of spraying PBR or oil in the cylinders is usually when there is a concern of rust in the cylinders from sitting. It won't hurt to try, but if it is locked up due to no oil, it may not change anything.

Let me know.

Joe
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Wednesday, December 14th, 2022 AT 8:07 PM
Tiny
JUSTOUTOFTIME
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Thanks, Joe, for staying with me on these issues and your input I appreciate you. Well, now another person/friend just said (which I'm sure isn't true) that there is a shut off on the truck in case oil is too low that the engine will shut down. There are so many things' people say that's not true, that it's not even funny. I'm going to try the 2 cycle and fill up the cylinders full and let it set. Then I will try to turn the motor by hand. It's worth a try. Maybe a miracle, I could surely use one. Thanks, Joe, for your input will let you know if it worked.
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Wednesday, December 14th, 2022 AT 8:23 PM
Tiny
JACOBANDNICKOLAS
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Hi,

First, I am so sorry I didn't get back to you sooner. I just now saw your reply. As far as shutting down, some vehicles will shut down if the oil pressure is too low. I don't believe your vehicle has that,

On the other hand, have you been able to make any progress? Were you able to break the engine loose?

Let me know.

Take care,

Joe
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Friday, December 16th, 2022 AT 8:42 PM
Tiny
JUSTOUTOFTIME
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It's always good to hear your input, Joe! I haven't tried to turn the motor on the Colorado yet. It's been windy and cold outside too cold to work on it just yet but will in the next couple days. I remember when it shut down, I was at a stop sign getting ready to turn. As I turned I gave it gas went about 50 ft and it just stopped, the motor just shut off. I didn't hear any noise from the motor, no clacking sounds or banging, didn't overheat none of that stuff. I still had lights, radio, turn signals, wipers, all that was fine. I got off the road and turned the truck off/wasn't running anyway. Got out of the truck and looked back and seen a trail of oil from the stop sign to my truck. I tried to start the truck, but the motor wouldn't turn over. I called a friend to tow me back home. When he got there, we both got under the truck and found the oil filter sitting on the frame/I beam of the truck. I didn't drive it far, maybe there is some hope that the motor isn't shot. I'll keep you posted. Thanks Joe.
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Saturday, December 17th, 2022 AT 3:43 AM
Tiny
JUSTOUTOFTIME
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Hi Joe, I have some very important questions that will help me, if you could give me some input. 1. What would be the first thing I guess you could say part to go/damage if you kept driving a vehicle that was already overheated.
Past experiences on my vehicles were always the head gasket if I drove it past/beyond that.
But most of the time would pull over and let it cool down. It would boil and hiss and thump which I could hear inside the vehicle until it cooled down
2. Would not changing the oil at 20,000 could have caused it to overheat and blow a head gasket.
I'm still in shock That I drove my truck that I use for work, in perfect running order except the heater was blowing cold air to a shop that I trusted. To find out 4 or 5 days later they drove it to another shop to have them work on it without asking me or telling me they did so. The shop I took it to then tells me it's got a blown head gasket and the motor is shot. I can't even drive it off the shops lot. All that was wrong with it was, heater blowing cold air.
I drove the truck for a month and a half before without heat and never overheated. I drove it to the shop and ran fine. They drove it to another shop so that tells me it was running good then. So, my thoughts are, that shop drove it back to initial shop but before it got there it overheated and kept driving it until it was way overheated and blew the head gasket which caused the heads to warp and ruined the motor. I can't understand why they didn't look at the temperature gauge (and was working) in the vehicle in the shop if you were working on coolant/heating system and shut off the vehicle before it got too hot and ruined the motor. Thats what the gauge inside the vehicle was put there for. I'm I right.
What are your thoughts?
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Monday, December 19th, 2022 AT 8:38 PM

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