Question about 1994 Cadillac Eldorado

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A/c ...... just got a 94, eldorado....not used to the a/c has the e.t.c. envir. temp. control feature.......where should i have it set? and is there a way to by pass this? i want to be able to control the a/c, i live in florida and i want to be able to crank the a/c when i need to.

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The ac temp controller only goes from 60 to 90 degrees /  if you set it at 60 the a.c. will run non stop. it does not shut it off when it reaches 60.  it will only turn it on and off if set to 61 to 89 degrees 

Posted on Feb 01, 2009


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Posted on Jan 02, 2017


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How do u run diagnostics at heater controlson caddy 1998 eldorado

Self-diagnostics. Off button and pass temp up button at the same time. All of the DIC and dash lights will illuminate. It will begin to cycle through DTC codes. You can use the fan up/down and the button next to it (dont recall which it is) to select and cycle through each menu. if you get stuck and dont know what to do, press the off button and it will exit you out.

Better yet here's a link to a forum thread that explains this procedure clearly. Just following the instructions. This is for a Seville but the procedure is the same. Good luck!

How To Pull Codes DTC

Mar 02, 2017 | 1998 Cadillac Eldorado

2 Answers

Can I reprogram my keyless remote from my 1995 eldorado to my 1996 cadillac eldorado

AS programs can be altered I would have it checked out at a dealer service centre as they will need the keys and the vehicle to see if it can be done

Jan 11, 2014 | 1996 Cadillac Eldorado

1 Answer

I have changed the plugs, wires, coil packs, tps, map sensor, and fuel filter but when accelerating anywhere between 0 to 40 mpg the rpm gauge jumps. what else could be the problem im getting code p071 on...

Code 71 is for a problem with the ambient air temp sensor, if your car has one. The computer uses the sensor to measure outside air temp and regulate fuel mixture.
I would check to see if it has such a sensor, and also check fuel pressure.

Aug 26, 2013 | 1994 Cadillac Eldorado

1 Answer

My 94 Cadillac eldorado is having a very bad serging problem in overdrive and in lower rpms in 3rd gear. What's wrong?

Had same problem on my 94 eldorado touring and it turned out I had bad ign coil. This sets a 41 code. Check codes for no cam ref signal. Sounds stupid but if one coil stops firing on only one cyl it sets that code. There are 4 coils and they run 2 of one end of ign module and two of other end.

Jun 02, 2012 | 1994 Cadillac Eldorado

1 Answer

94' Eldorado adding coolant

Yes! Add coolant when the engine is cold to the marks on the tank.

Mar 21, 2010 | 1994 Cadillac Eldorado

1 Answer

SeaFoam in my 94 Cadillac Eldorado. Bad idea!

I doubt the Sea Foam had anything to do with that. I'd check for a vacuum hose off, especially by the PCV valve. Maybe a broken hose or the PCV valve itself might be stuck. Maybe just put a new one in, they are not that spendy. No vacuum would explain the brakes not working.

Jan 31, 2010 | 1994 Cadillac Eldorado

1 Answer

94 eldorado stalls

First impression is a MAP sensor. If you take the car to a service station or an auto parts store that features free diagnostic tests, I'm sure the MAP sensor fault will appear. Other cause could be the TPS which controls the idle at cold,warm, and AC operation settings. It's possible that you're stalling due to insufficient idle speed setting on the TPS.

Jun 30, 2009 | 1994 Cadillac Eldorado

1 Answer

94 eldorado

There is a special tool necessary to remove the water pump. You can purchase it from NAPA for $40.00 or email me for a discount on the tool at

Additionally, you will needa 3/8 socket wrench as well.

Sep 29, 2008 | 1995 Cadillac Eldorado

2 Answers

Radiator coolin fans

I 'am having the same problem with my '94. From what I hae read they each have their own relays but I have been unable to find them.

Jun 12, 2008 | 1994 Cadillac Eldorado

2 Answers

1994 eldorado

have you checked that battery? it seems that it may need replace it might not be keeping a charge, the connectors to the battery could also possibly be corroded as well, which could caue connection problems, i had the sam problem with my old car and it turned out to just be the connection from the cables to the battery due to bolts needing to be tightend or corrosion.

Jun 05, 2008 | 1994 Cadillac Eldorado

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