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1993 Chevrolet Cavalier Cooling fan problem

Tiny
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Lets see with the infared temp gun what temp the fan turns on at makes it hard to not be able to see temp the computer is seeing
Also what is the part number of the sensor you just installed the number on the part itself that you just put in?
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Monday, May 11th, 2015 AT 6:01 AM
Tiny
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Good morning:

A mechanic buddy of mine will let me borrow his infrared temp tester and I'll test it when I get home. I'll see if I kept the box the sending unit came in so I can supply you the number.

Thanks, again !
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Monday, May 11th, 2015 AT 6:39 AM
Tiny
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I was hoping for the part number on the part itself to rule out part was miss boxed etc I have seen that before.
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Monday, May 11th, 2015 AT 6:54 AM
Tiny
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I'll see if I can see the number and if so, I'll let ya know.
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Monday, May 11th, 2015 AT 7:22 AM
Tiny
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Ok
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Monday, May 11th, 2015 AT 12:26 PM
Tiny
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Well Bubba. You were right once again ! With the infrared tester the fan DOES COME ON at 232 degrees and shuts off at right at 200 degrees, and I checked it three (3) times ! The gauge as you had said is WRONG, what a relief. So I owe you another hundy as promised. NOW, how do I go into a donation mode to kick you down my promise since we started out with the first page where a donation is possible to insert?

Man, I'm finally done ! THANK YOU, THANK YOU !

Ron
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Monday, May 11th, 2015 AT 2:30 PM
Tiny
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Do you mean the fan comes on at 223 not 232?Also I will get you the info on Making a donation.
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Monday, May 11th, 2015 AT 6:03 PM
Tiny
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Hey bubba:

Yes I am the king of transposes ! I meant on at 232 and off at about 200-202 degrees. Also since I've got your ear. I had changed the EGR valve as part of my trial and tribulations on the car and when I took it for smog, the mechanic stated the one activates (opens) with just vacuum and thus doesn't stay open. He mumbled something to the effect the original OEM works off of vacuum AND pressure and I may need to get a OEM, does that sound correct?

It makes mechanical sense thinking some exhaust pressure might be needed, just surprised again if I was sold the wrong part.

Thanks buddy !

Ron
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Monday, May 11th, 2015 AT 9:14 PM
Tiny
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I just looked at your egr valve looks kinda like a older saturn single cam engine egr valve.I dont see why it would have to be a factory egr valve I would just get a aftermarket market one if it were my car. Looks like the egr valve gasket has screen on it. Which is rather strange so is the diaphragm in the egr valve not holding vacuum anymore is that why there telling you to replace it?
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Monday, May 11th, 2015 AT 10:34 PM
Tiny
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Yes sir ! It is brand new (not OEM) and they stated it would not pass smog due to it not holding vacuum. Who knows but I have a spell before I have to have it re-smog so I'll just sit back and wait. Now, my new gasket did not have a screen on it nor did the old one when I replaced it so something there is different and no, it's never been changed until I did it and I'm the original owner.

Thanks and have a GREAT day !

Ron
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Tuesday, May 12th, 2015 AT 5:45 AM
Tiny
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By the way if I test the temp at the thermostat after just coming out of the radiator the temp the fan comes on is more like your 220 degrees, I was testing the block temp literally where the thermostat housing bolts to the engine, maybe the reason at that location, the temp is a bit warmer?

But the temp ON the thermostat housing the fan was coming on at about 220 and off at the same of about 200. Makes sense?

Ron
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Tuesday, May 12th, 2015 AT 5:55 AM
Tiny
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You have to be careful where you measure the temp sometimes you can get a false reading measuring the exhaust etc rather then the coolant temp. The fan turning off at about 200 sounds about right. It says the fan turns on at 221 so I say around 221-223 the fan would turn on from what I have seen with other cars.I saw the screen on the egr gasket on the auto zone phone parts app.I look at another source to see what they have. The egr valve should hold vacuum or it wont open. You can use one of those hand vacuum pumps with the gauge to test it.
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Tuesday, May 12th, 2015 AT 7:12 AM
Tiny
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Yes sir, so the temp on the thermostat housing (there housing where the hose connects, shows 220-223 degrees when the fan comes on and right at 200 degrees the fan shuts off, I think all is good.

Ron
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Tuesday, May 12th, 2015 AT 9:41 AM
Tiny
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That sounds perfect for the fan turning on and off.
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Tuesday, May 12th, 2015 AT 8:53 PM
Tiny
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Did you get the message from mike at 2carpros telling you how to donate?
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Tuesday, May 12th, 2015 AT 8:56 PM
Tiny
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No I haven't but I've been out of town and have got to go back out and thus the reception in the hotels is a bit unreliable to say the least and I get a lot of good email messages shoved into my spam file (which self cleans every 12 hours) when there isn't good reception. Have him give it a try again !

Thanks,

Ron
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Monday, May 18th, 2015 AT 8:57 AM
Tiny
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I emailed mike to resend the info on donating.
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Monday, May 18th, 2015 AT 7:33 PM
Tiny
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Thank you for considering us for another donation. We don't have a generic donation button, but if you wish to add to your donation you can post a new question and just put thank you to your Expert in the question body and donate when submitting or you can send it directly via PayPal to our PayPal account- paypal@2carpros. Com

Thanks again,
Mike
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Tuesday, May 19th, 2015 AT 9:54 AM

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