1993 Cadillac Deville Clueless

DAMEL09

MEMBER
1993 CADILLAC DEVILLE
V8
FWD
AUTOMATIC
120,000 MILES

I have a 93 sedan deville and when I start it up it has a serious miss in it. Its dumping straight gas out off the exhaust n smokes very bad. But after the engine warms up it runs like a new car with no flaws. I have changed plugs, wires, distributor n cap. I was thinking it could be the computer but I have no idea where thats located. Please help me out?

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Could be the computer-check the injectors and fuel pressure regulator if its leaking and also for excessive fuel pressure

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Friday, August 20th, 2010 AT 6:48 PM

GOODFELLAS1957

MEMBER
35 POSTS

I don't think itd fuel pressure because if its dumping that much fuel It would be fouling all 8 plugs I think its a fuel injector and when it worms up it works properly. Start engine let it run for about 1-2 min before it clears up then shut it down and pul all pluge the one thats wet and foul has the bad injector. Thats if the car comes with single port injection. If it has a throttle boby with two injectore in it just look down the throt of the body and see how much fuel is going into the motor. For fuel to be coming out the exhust you will have no problem seeing it. Are you sure that its fuel coming out of the exhust and thats whats making the smoke. What does the smoke smell like. Or tast like you will know what I mean if you stand in the smoke for a sec.