Question about 1993 Cadillac DeVille

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Its going dead once i stop and when it warms up it jerks

I have a 93 cadallic sedan deville when i take off my car starts jerkin once it gets to going it drives good but once i slow down or stop it it goes dead or when it warms up it continues to **** and go dead and its like its not getting gas

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Try changing the fuel filter, check the timing, check your spark plug wires, check for vacuum leaks. ie: loose or cracked vacuum hoses, loose intake bolts, etc.

Posted on May 22, 2009

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1 Answer

Where is my Ecm located on my 1991 sedan deville cadallic


It's called a PCM back then, power train control module, and it's located behind the right side of instrument panel, often easier to see/access with glovebox removed. Hope this helps!!

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1 Answer

1995 jeep grand cherokee laredo jerking at 50 mph


which engine? (asked now 1000 times, only 2 ever answered)

tune up time, spark parts, rotor to plugs. filters. both.

its called a 60k mile tune up solves most.

my guess, is its misfiring or

is this the ASD relay dropping out then back in, as driven.

jerked before and after CKP sensor, did you know its the last thing to fail......

see the list of ASD drops.

misfiring, can be felt, its like a misfiring chain saw, ever here a 2 stoke misfire, ratta, tata ,tat?

some call it jerking, its not, is misfiring. (3reasons ) and 25 causes.

but jerkin real, like if you cut the ignition that is and instant bog.

but if you off the key and back on , fast, that be a jerk

that is total power loss. not misfire. its loss spark and fuel.

and jerks hard.

so does loss of 12vdc to the EFI system.

so the first step is to see if its the ASD relay dropping out.

on all jeeps.. 93 to now.



ASD



http://www.fixkick.com/Jeeps/ASD.html



automatic, shut down. (relay and EFI logic)



key point, the ASD will kill the engine, if fit sees spark is bad.

so its a chicken and egg deal.

here is the logic.

key on , crank , ASD closes, fuel injects and engine starts

then dies in seconds. or runs full time.

note that if the ECU sees spark dead, it cuts spark.

Sounds odd , huh. but is NOT.

this relay stops all car fires. (caused by this protection not in place)

Apr 02, 2014 | 1995 Jeep Grand Cherokee

1 Answer

When engine warm up -car start jerking as you accelarate


Sounds like a basic cylinder miss-fire. Common issues are spark plugs, wires, coil, and fuel injectors,
is the check engine light on when the engine is running ?

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Does 1996 cadallic sedan deville have a fuel shut off switch


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Dec 28, 2009 | 1999 Cadillac DeVille

1 Answer

'93 Celica GT 2.2L w/ Auto Trans. hesitates, jerks


hi,

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good luck

J

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1 Answer

Car starts jerking at 35 mph then stops jerking and starts jerkin


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89 Cadillac sedan deville when car is on the service engine light comes on and have to disconnect the battery to restart the computer


Disconnecting the battery will neither clear the code, nor stop the light from coming on. Press OFF and WARM together on the a/c panel to read codes. Once repair is made, codes can be cleared by pressing and holding the OFF and HI buttons

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1 Answer

Fuel center panel


FRONT SEATING AREA, DRIVER SIDE, UNDER DASH, MOUNTED ON SIDE OF FUSE PANEL.

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