Question about 1992 Cadillac DeVille

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1992 Cadillac Sedan deville 4.9 liter port fuel injected - when i press on the brake to come to a stop the idle fluctuates real low and wants to die out but it drive fine until you come to a stop tha

When i press on the brake to come to a stop the idle fluctuates real low and wants to die out but it drive fine until you come to a stop then it will want to die as soon as you press the brake, unless i step on the gas real quick and pump it while holding the brake but it is defiantly not safe to drive it if i cant stop without it shutting off thanks for help

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Check the brake booster for a vacuum leak under brakes

Posted on Sep 26, 2017

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Posted on Jan 02, 2017

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SOURCE: Cooling fan relay on a 1992 Cadillac Deville

Left Hand Side Of Engine Compartment On Relay Bracket

Posted on Jan 25, 2009

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SOURCE: I pushed my emergency brake down and now i can't get it back up

try putting the car in drive then back in park. should release brake.

Posted on Apr 18, 2009

emissionwiz
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SOURCE: 63 cadillac sedan deville heater core removal and installation instructions

I do think you have to pull he dash, for that you will need a manusl, try ebay for used factory manuals, I have had good luck getting them there for all my cars.

Posted on Oct 17, 2008

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SOURCE: battery keeps dying in the middle of the night

have the alternator checked it could test good and still be bad but it can also drain the battery 9 times out of 10 its the alternator thats draining the battery

Posted on Feb 01, 2009

  • 86 Answers

SOURCE: 1992 Cadillac Sedan Deville power steering leak

Replacement reservoir o-rings are available to correct the problem

Posted on Apr 25, 2009

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1 Answer

Car wanting to die out on stop n go


Try changing the temperature sending unit. This regulates the cold start mode and it appears it's still in cold start mode and still feeding it too much fuel, causing a flooding condition and making it die at stops. When you depress throttle to go, it's still getting too much fuel and wants to bog and die on take-off.

Dec 07, 2017 | 1995 Cadillac DeVille

1 Answer

How do I adjust the idle on my 89 Cadillac Coupe Deville? (Fuel injected v8 4.5 liter)


computer controlled fuel injected vehicles from GM don't have user adjustable idle speeds. The computer controls this.

Jul 16, 2010 | 1989 Cadillac Sedan DeVille

1 Answer

Idle on my 1992 cadillac deville is very low


no take that ****** out and give it a bath in carb cleaner 20 mins coat with wd 40 reinstall if its better by a new one any way only a temporary fix dont////dont turn any screws

Jan 09, 2010 | 1992 Cadillac DeVille

5 Answers

Find free online repair manual for 1989 cadillac deville


i have a 1989 cadillac deville 2 door front wheel drive i just changed the fuel filter in it and i pour fuel injection cleaner in the gas tank. when i pour gas in the carberator it gives a little start to the car and it started the car but it wont stay on. i just bought a new battery for it but i havent tried it out yet just because the positive wire going to the battery was bad so i cut the wire and gonna put a new wire for it do you have any suggestions what is wrong with it. it has been sitting for a couple years.......and it does start it just turns over......

Aug 29, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

Idle problems with cadillac


dee if the linkage is binding first, clean the throttle body and lubricate all moving parts if this doesn't solve it an accellerator cable may need replacing

Jun 29, 2009 | 1992 Cadillac DeVille

1 Answer

Cannot locate sedan deville fuel filter


Under vehicle, driver side, below seating area, front of fuel tank, mounted on chassis in fuel lin.

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Jun 11, 2009 | 1992 Cadillac DeVille

1 Answer

My 92 cadillac sedan deville is idling very high and when i let off the brake it will increase in speed w/o pressing the gas pedal. any ideas?


sounds like the ISC ( idle speed control ) motor is being told by the computer to extend or else its possibly binding. Located on the drivers side of the throttle body . Also check for binding aceelerator linkage. One other thing that might sound strange is check the floor mat by the gas pedal. Sometimes gets jammed.

Feb 20, 2009 | 1992 Cadillac DeVille

1 Answer

Fluctuating idle.


Could be a fuel injection problem or a bad IAC.

Jul 17, 2008 | 1995 Geo Tracker

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