Question about Cadillac Fleetwood

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I have a 1978 Cadillac Fleetwood Brougham 425 with 4 bbl. carburetor. When my engine is cold, it stalls when I accelerated, whether starting from a dead stop or travelling at a fairly decent speed. Sometimes it stalls when reved in neutral. Is this a mixture problem, a choke problem, or what?

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  • Cadillac Master
  • 2,002 Answers

I would suspect sticking linkages. Spray all the linkage, especially on the choke side with penetrating oil and work it all back and forth.Make sure you engage and disengage the choke linkages manually through all its functions. Then spray it all down with a good lubricant like white lithium.
If you have the vacuum and heat operated choke then quite often that will gum up. Take it apart enough to get the piston out and soak it all down good with penetrating fluid.Wash the piston off and slide it back together. When it slides in and out easily, then give it a quick spray with lube and put it back together.

Posted on Oct 22, 2013

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1 Answer

How do i reset the oil light on my 95 fleetwood cad


1993 BROUGHAM & 1993-96 FLEETWOOD
Oil Life Indicator
1. Oil life indicator will display CHANGE OIL when oil change is needed, based upon engine oil temperatures and driving patterns. After changing oil, reset
oil life indicator.
2. To reset, turn ignition switch to ON position. Do not start engine. Fully press and release accelerator pedal 3 times within 5 seconds. If CHANGE OIL light
comes on and stays on for 5 seconds, it did not reset. Reset system again.

Jun 08, 2010 | 1995 Cadillac Fleetwood

2 Answers

Firing order for 1989 cadillac fleetwood


For the 1989 Cadillac Fleetwood:
I do not know if you have the Fleetwood Brougham with the 5.0L V8, or the Fleetwood FWD (Front Wheel Drive) with the 4.5L V8; however I have included both below.

For the Fleetwood Brougham 5.0L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
......(back)......
|..8............7..|
|..6............5..|
|..4............3..|
|..2............1..|
......(front)
Distributor:
......(back)
.....8.....1
4..............2
3..............7
.....6.....5
.....(front)

For the Fleetwood FWD (Front Wheel Drive) 4.5L V8
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
..........(back)..........
|...2....4....6....8...|
|.........................|
|...1....3....5....7...|
..........(front)
Distibutor:
......(back)
.........4
..3...........8
6.................1
..5...........2
.........7
......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

May 19, 2010 | 1989 Cadillac Fleetwood

1 Answer

Where is the temperature sensor located on a 1978 Cadillac fleetwood with 425 c.i. and carburated intake?


It should be the same as the other GM engines, Between the first 2 cylinders on the driver's side of the engine. It's somewhat hidden by the exhaust manifold. Hope this helps.

Feb 17, 2010 | 1983 Cadillac Fleetwood

1 Answer

1983 cadillac fleetwood brougham 4.1 liter battery not charging


check the alternator fuse that can be a fuse link by the battery pole,check alternator voltage on the alternator red wire or connector,it should the same as on the battery ,check ground wires for loose intermitent contact

Aug 16, 2009 | 1983 Cadillac DeVille

1 Answer

Stalling Issues


Was the TPS adjusted to 1.5 volts or checked for that voltage reading beforehand?

May 28, 2009 | 1990 Cadillac Brougham

1 Answer

Hesitation problem


try cleaning the inside of the MAF sensor and do the following procedure as well.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Mar 24, 2009 | 1994 Cadillac Fleetwood

1 Answer

Engine won't turn over


you drove from a warm climate to a cold one in a short period of time, compared to climate change which is gradual usually. My guess is that the last time you gassed up the car it was still warm there. When you change temperature quickly like that, condensation forms, and you get moisture in the tank and the fuel filter. When you reached you destination, and **** the car off, it was cold, and somewhere in the gas line it froze. Try changing the fuel filter, and ad a can of heat.
this should dry up the moisture, and solve your problem....

Feb 02, 2009 | 1995 Cadillac Fleetwood

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