All dash gauges not working except tachometer

Tiny
ROBERT ERWIN
  • MEMBER
  • 2005 CHEVROLET TRAILBLAZER
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
Only the tachometer works all others are not working.
Friday, October 5th, 2018 AT 5:53 PM

23 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,356 POSTS
Hello,

There are two fuses ( #24 IPC-DIC and IGN E) that need to be checked first. Here are the wiring diagrams so you can see how the system works and the fuse location along with a guide to help you test the fuse for power:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Sunday, October 7th, 2018 AT 12:29 PM
Tiny
ROBERT ERWIN
  • MEMBER
  • 18 POSTS
Ken fig 22 you sent me is for a 4.2 is the 6.0 the same location
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Friday, October 26th, 2018 AT 2:15 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Yes, should be. Let me know.
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Saturday, October 27th, 2018 AT 10:23 AM
Tiny
DANIELAL
  • MEMBER
  • 1 POST
Ken,

Just want to thank you. At a local auto stereo shop the installer asked me to pull the fuse for the radio for 20 minutes to reset the disc player and when I plugged it in the car would not start or anything. The Envoy XUV windows, door locks or anything, the lights only worked and the gauges did not work. The key response was "Unknown User".
I found your thread about fuses #24 and IGN E and pulled them and checked them and they were good. I reinserted them and everything worked. Oh yes, the CD player works also.
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Saturday, June 20th, 2020 AT 5:57 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,356 POSTS
Nice work, we are here to help, please use 2CarPros anytime.
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Saturday, June 20th, 2020 AT 11:31 AM
Tiny
HOVENB
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
When I turn on my car sometimes the check gauges sign comes on then all my gauges are not working they just stay dormant, windows wont roll down alarm wont work gauges will stay still. But when I would apply the brake at a light the gauges would come on for a bit like there was something loose or something and the movement from braking hard would fix it?So I braked really hard one time then the gauges came on? But I want to know how to fix and prevent that and now if its because of that same problem with the gauges when I turn on my a/c when im parked the rpm fluctuates for a few seconds then my car turns off when the a/c is on except when I have it in drive and im driving the a/c will work and wont turn off but if its in park the car will turn off after a couple seconds after idling but if I rev the rpms it will keep the car on for a bit then after a few seconds the car will turn off again if its in park and idling when I tur on the a/c I hear the a/c engage when I turn on the ar and its in park then shortly after the rpms go down then the car turns off whats going on I had a shop run a diagnostic test on it and no codes showed up? Please help.

Sincerly
Charliee.
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The clusters can be a problem on these, but I would take in into the dealer and ask them if your truck has the most current software update as there is a fix in there for the cluster.
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
  • 2002 CHEVROLET TRAILBLAZER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 105,000 MILES
The check gauges light came on right before I turned off the engine, then I heard a hissing sound. The check gauges light came on again as I was driving and began flashing and dinging then smoke began billowing from the right side of the engine.
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
What exactly did you do when you 1st saw this "Attention Light"?

The Medic
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
The first time it came on I had just pulled into the garage and turned off the engine.
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
Roger,

Sometimes I may sound harsh. My wife knows this well!

I sorta view our vehicles as $$$ on wheels

I drive really old Jeeps, my only warnings occur, each time I glance down at the gauges, or hear a different sound, or feel a unusual "feel". Or even once in a while, drive slow, my doors off (or windows down), radio off. Just listening! Even when you park somewhere, do it in a "clean spot", then when you return. Look for fluid leakage.

I also read any literature that comes with any device I must operate. If you will notice, at the beginning, it will usually say "READ THIS 1ST!"

Same applies for your vehicle. HAVE YOU READ YOUR OWNERS MANUAL COVER TO COVER. Or at minimum, have it right beside you, so you can reference things you do not understand?

I think Drivers would be much better off and SAFER, if not only were they graded on "Steering and Braking" and what "Road signs mean", but also should be graded on "EMERGENCY PROCEDURES", they should take when their car is having a problem (NOT WRITTEN, BUT HANDS ON, LIKE A PILOT, IN A SIMULATOR). ALL SHOULD BE REQUIRED, BEFORE THEY GIVE YOU A PIECE OF PAPER ALLOWING YOU TO "HURTLE DOWN THE HIGHWAY". WITH ONLY "FATE BY YOUR SIDE"

Way back, I reckon, this would be called "normal driving" and everyone should be "alert" to these things and KNOW EXACTLY WHAT TO DO, SHOULD SOMETHING ABNORMAL OCCUR!

Now over the years they make "Improvements" designed to "COUNTER NEGLIGENCE". Obviously still "Tuned Out" by the Operator!

If a cell phone can do it all. Surely they can make a vehicle that will not start until all "CHECKS and SERVICES" have been performed ON SCHEDULE, with a little cell phone screen, instructing you on "Exactly" what to do, in order for it to crank up, and you be able enter the "Hurtling Mode"

Did you know, you are supposed to pull Mr. Dipstick weekly. Even check other critical items more often than. When the man changes your oil? What if his cell phone distracts him at work, or he's texting. Your car would again, be neglected. YOU MUST STAY ON TOP OF YOUR STUFF. NO ONE ELSE WILL!

OKAY--back to your issue for a bit,

After your car "BEGGED" you to stop and investigate a critical problem,

YES, GIVE CREDIT WHERE CREDIT IS DUE! YOU DID RECOGNIZE IT! BUT THEN YOU IGNORED IT.(Sorta wasn't like you left your turn signal on.)

"Check Gauges" means one of these puppies ain't readin' right. Better find out why! (Usually popping the hood, and checking fluids, at minimum). Not, yeah, there still here, nobody has stolen them!

Now the issue has escalated into a more major problem. Possibly was avoidable,

I really hope you stopped when the "Hiroshima Atomic Plume", projected out from under the hood

This is where you come in, as I am here, and you are there!

Do you see oil or water in the vicinity of where the smoke came out?

When the car is cool, check your fluids see whats low or non-existent.

Maybe this is as simple as a hose, with a hole in it

Keep info coming!

I will still help, even if you don't like it!

I really am trying to help.I usually get ignored. Like a warning light!

I will also discuss the way I sent my Daughter Hurtling down the highway. Best I could. If you're "in" for the rest of my story.

YOUR TURN

THE MEDIC
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
There is a substance on the floor of the garage. It has an oily consistency, there is no smell and it is clear.
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
Using a hand mirror and a flashlight can you tell where it's originating from? Send pics if possible, like "out some, so we can see location, in some as to see the problem.

Using WHITE PAPER, daub some up, see if it has color?

Fluid level checks SAID WHAT?

The Medic
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
Coolant is empty, oil, transmission fluid are full. I took a picture of the area where the leak came from, the spot on the garage, a papertowel dabbed into the spot, and the empty coolant reservoir.
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
I'm gonna be gone a few hours, someone else may jump in and assist

Before I take off, I want you to fill your radiator back up.

BUT, I want you to keep track of how much water you add to it. In quart increments will be fine

. Do not worry about adding coolant at this time. Will come later (don't want you to waste $$$, if it will require draining again)

After it's filled, volume recorded, I want you to crank up, and continue to fill, and keep up with volume you are adding

Monitor your temperature gauge or light. After it reaches operating temp, you probably cannot fill it anymore. Replace the cap.

Lets let it run about 10-12 minutes total. WATCH TEMP THE WHOLE TIME. Record abnormalities

Watch under the hood and also watch your exhaust, and if anything starts happening that is NOT NORMAL---shut it off!

You are looking for leaks, water/ steam coming out of the exhaust, and the engine running real rough. Water temp skyrockets or oil pressure drop off really low. Shut it down before the 12 minutes, if this happens

Let me know everything you did or added. How it ran during that period, and what the temp gauge read at various times. Other gauges also. Oil pressure in particular. Is your check engine/ and/ or check gauges light on permanently. Was it off at the beginning of this test?

Gotta leave soon, back in several hours!

The Medic
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Saturday, June 20th, 2020 AT 11:33 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
I added the water and ran the engine as suggested. The oil temp was 40 at 11:04 and 11:16, battery was 14 at 11:04 and 11:16, water temp was 100 at 11:04 and 210 at 11:16. No exhaust fumes, I filled up the coolant reservior and it remained the same while the engine was running. As of 11:38 there is no leakage. I will continue to monitor it.
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Saturday, June 20th, 2020 AT 11:34 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
OK you're looking good so far!

I want you to drive it 10 miles

Looping close-by around your house, not on major roads

Monitor your gauges the whole time, radio off, A/C on low (we want to load it up, making the engine work hard!)

Leave your window down so you can hear anything unusual!

Pull over and stop, if your Water Temp gauge rises high, or your Oil Pressure gauge falls to nothing. If Water temp gets high, let it cool down, try to get home, if it rises again, stop and repeat. As long as you do not drive Overheated, your engine should be OK.

If oil pressure goes to nothing. No more driving, PERIOD!

Like I said, real close to home, 10 miles, even if it's 'round and 'round the block!

Come home, shut it down look for leaks

When it cools down. We're gonna check the water, see if any disappeared, seeing if you can make more go in your "Now Full" radiator. This could indicate head or head gasket problems

This test may tell us if you have a thermostat problem or worse. Or you just let you water get too low without checking it.

We are hoping for the latter, and nothing was damaged

If all is fine, we're gonna drain the radiator, replace the drain plug or close the valve, whichever!

Then replenish the radiator with properly mixed coolant, before you pour it in!

I want you to find out the proper type coolant/ antifreeze needed for your car. Owners manual. Hood stickers?

I will tell you how to mix it, when you return with good results. Make sure you monitor warning lights, let me know.

Some comes already mixed, but is more expensive than doing it yourself.

Your Turn

The Medic
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Saturday, June 20th, 2020 AT 11:34 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
The water temp kept rising to 260 and I had to keep stopping to let it cool down. There has been no leakage and the water level has not moved since I added it this morning.
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Saturday, June 20th, 2020 AT 11:34 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
All righty

Lets leave the water in there for now

With all the crap I had to do today, I should have had you watch the radiator fan

By chance, did you see the radiator fan come on?

If not, fire it back up, watch for the temp to rise. Observe the fan, see if it comes on at normal operating temp, or when it rises above that. Again, shut it off if it keeps rising.

Right now, possibilities are Fan not working (several things may cause that). Thermostat. Head gasket/ head issues. Road debris in front of your radiator

Am I stressing you out?

Some of this is not hard to check or fix, or your mechanical buddy might fix it, or the mechanical feller, from the auto parts store might do, on his off time, inexpensively. The Head Gasket stuff is major to do. So far, that's seeming OK!

Are you stuck? Or do you have other transportation?

Are you able to perform repairs, friends or family?

Send back FAN results. If it's the problem, it "could" be simple!

You're a trooper!

The Medic
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Saturday, June 20th, 2020 AT 11:34 AM (Merged)
Tiny
DEEDGE
  • MEMBER
  • 8 POSTS
The radiator fan comes on and is working fine. When I turned the engine on the temp was almost to 210 but it didn't rise as the engine idled.
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Saturday, June 20th, 2020 AT 11:34 AM (Merged)

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