Question about 1988 Cadillac Fleetwood

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CADILLAC FLEETWOOD WONT GO AFTER RUNNINN FOR AWHILE CAN GIVE IT GAS REPLACE CADLITIC CONVERTER TUNE UP DONE REPLACED MAP SENSOR FUEL FILTEROIL CHANGE HELP OVER 1100 DOLLRS IN WORK STILL NOT RUNNIN RIGHT

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  • Cadillac Master
  • 1,348 Answers

Get a can of liquid freeze at an an electronics supplies place.it is made by mg chemicals.
you spray defective components and the -60F spray cools down the part and the problem goes away.
it does create moisture,so be careful with HV circuits,but it is amazing for finding modules that cut out when hot.
i have used it for years in electronics to find bad diodes and transistors and ic s .

Posted on Jul 03, 2009

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Posted on Jan 02, 2017

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1990 Cadillac Fleetwood when the engine is hot it starts bogging out like its going to cut off or like it's not getting gas what's wrong


Could be catalyst converter probably bad its plugging up inside which would cause the car to act that way. Other wise engine temp sensor may be bad and when motor gets hot that sensor isnt reading right so engine run tge way it does til you shut it off and let it cool off then it reads normal again

Jun 17, 2016 | Cadillac Cars & Trucks

1 Answer

When i step on the gas it goes then it looses presure


Could be a Fuel Filter---but you just had the pump done
and the filter should be new

Next would be a clogged Exhaust Converter

The converter if 17 years old is doing nothing anyway,
as far as emissions goes

Check Fuel Pressure

Check TPS Sensor Voltage

Sep 03, 2012 | 1995 Cadillac Fleetwood

2 Answers

Had to replace fuel pump in 1994 cadillac fleetwood still want start cant get power to the pump grey wire but power going to fuel gauges


replace the oil sending pressure sensor on the engine which provides the priming of the fuel pump uopn first starting the engine

Apr 30, 2011 | 1994 Cadillac Fleetwood

1 Answer

Car runs strong then stalls out. it wont start for awhile about 20 minutes then starts again. took it to big o but they couldnt figure it out, they think its a electrical problem. they could not do a...


i have the same problem with a car.. usually its the air charge sensor. Although replaced the air charge sensor and Map sensor and still same issue. bad smell of gas from exhaust cat pluged up replaced it still same problem. did a tune up (plugs and wires) now car wont even try to start cranks all day fuel pressure is good at 40psi also

Nov 26, 2010 | 1989 Buick Regal

2 Answers

I have a 2000 cadillac deville i have changed the map sensor fuel filter did a tune up changed the crank sensor both cleaned the throttle body and iac valve but car still stall out calmly can anyone point...


There are a couple of things that can be tested before replacing them.
Have the mass air flow sensor tested, and have a fuel pressure test done, there might be a weak fuel pump and/or faulty fuel pressure regulator.

Sep 22, 2010 | 2000 Cadillac DeVille

2 Answers

Cadillac fleetwood turns off after running


check ignition coil and ignition module sounds like there getting hot and shutting off very good sign that there bad

Jun 13, 2010 | 1994 Cadillac Fleetwood

1 Answer

Takes forever to pick up speed i replaced the cat converter


I would start with a cylinder compression test and then check the timing. I'm sure the car has over 100k, so it wasn't a waist to change the cat the fuel filter. There is no one answer for your problem. Things to check or proof out, vacuum leaks, fuel pressure, last COMPLETE tune-up, EGR, MAP, ECT sensor and the E-VAP system.

Jun 13, 2009 | 1994 Cadillac DeVille

1 Answer

94 Fleetwood hesitates and dies going up a hill (12 - 15 mph)


Sounds like A MAP sensor or a bad fuel Pump. Good Luck

Dec 28, 2008 | 1994 Cadillac Fleetwood

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