wuz up everyone im having engine problems with my engine. every time i start the car it has a rough start and when the car is on its start stutering. i have a felling its a fuel thing.... when you gas the car it hesitates and you leave your foot on the gas it makes a pop sound and then the car goes ... and the car doesnt stop doing that... im gonna change out the fuel filter to see it fixes the problem.... any advise would be greatly apriciated......
thanks , Ralph

anyone please????

That pop is probably a backfire.

This could be a lot of things, some of which could be...

Dirty injectors, dirty/sticking throttle body plate, fuel delivery, mass airflow sensor, bad sparkplugs, fuel pressure regulator, even a dirty airfilter.

Are there any codes set (have them checked), service engine soon light on?

Is this the 5.0, 5.7 or LT1?

i have a 350 5.7 no service engine soon light. i just rebuilt the engine a year ago and only put like 3500 miles on it. im gonna put it on a computer tomorrow to see if that pick up anything . whats confusing is that.it does it when ever it feeel like it. mostly when i start the car it starts boging out and when i drive it stalls alittle and has turned off on me a couple of times. thanks for the list of possible problems now i have something to let the mechanic know. again thanks alot.

how do i check the codes ?? thanks

Have the mechanic also diagnose the idle air control valve, and egr. These could also attribute to your problem.


Checking the codes, you can do it on your vehicle by yourself:
First step to initiate it is to

Turn ignition "ON."
Depress the "OFF" and "WARMER" buttons on the Climate Control Center (CCC) simultaneously and hold until the segment check appears on the Instrument Panel Cluster (IPC).

Then follow this site to get the codes:
http://myweb.accessus.net/~090/dtcobd1.html#ide

i just changed the air filter witch was really dirty and the breather at the bottom of the breather it had alittle oil and around the plastic on the out side where the plug hooks to... i replaced those car runs alittle better but still bogs out.... im gonna try the codes ill let you know what it was.. thanks

tryed the codes just stays on -00 i held for like 5 min and left it alone and nothing..

Hook a timing light up to each plug.. Same thing was happening to my '93 ETC and it was a coil that went out.. 19.99 at AutoZone... It has gone out on me twice in 234000 miles... Same coil the #1/4 Yours may be different.. There are no codes that occur when you lose a plug.. Don't believe me try taking a plug wire off.. The first time diagnosing it was a pain because the spark was just enough to trigger the timing light to go off...

My 2 Cents..

im not really a mechanic i dont know nothing about a engine but how to change the oil and the basic stuff. im gonna take to a mechanic tomorrow and see what they tell me. one of my friends told me to twist alittle coil or something like that. i hope it something small. keyth thank for your advice.

Coil is Super Simple.. And U can test without a timing light simply pull individual plug wires and monitor engine status. eg. sounds, vibrations...

took it to a mechanic and he said its coming from the roter , plugs, or cables. somewhere down that line the cars has gotten worse now it back fire i gas it and does not go no where and then a pop and smoke out the exuast. i need to take on wednesday to see whats wrong...

changed out the distributer the map sensor and the computer and nothing .... the car has gotten worse al it does not is turn over and shuts off and more advice?>????>???>???:hmm: :banghead:

You have a distributor?? I have 4 coils each with 2 plug wires and the ICM (ignition control module) that tells the coils when and where to send spark..
Don't think we have the same setup..

I read:http://www.cadillacforums.com/forums/images/misc/navbits_finallink.gif (http://www.cadillacforums.com/forums/showthread.php?t=31245) 93 FW engine problem
and thought it was Front Wheel Drive.. Which My 93 ETC 4.6 is..
I now notice this is under:

5.0 | 5.7 (http://www.cadillacforums.com/forums/forumdisplay.php?f=79)

Maybe a bad fuel pump... I had the same symptoms and I work on my own car. It drove me crazy I thought it was a tune up so I replaced the cap, rotor, and wires. Nothing! then I changed the coil, nothing I thought it was the computer so I replaced it due to some funky engine codes kept popping up, nothing. I was runnig out of things to change I kept thonking it was fuel but I didn't want to drop the tank. I took it to a friends shop that put a fuel pressure tester and he said it was okay so I TOOK HIS WORD FOR IT... I decided since the pump was "good" I figured would take the catalytic converter out. the only thing that did was make the car smell bad but it sounded nice! Finally I said screw I dropped the tank and replaced the pump I found the strainer on the pump was shot and a little hose that connected the pump to the sender was cracked. Problem solved after replacing the pump!!! I spoke to a buddy of mine and said that his was a very common problem with caprices (same setups) He would see it all the time at the cab company he worked at. Wish I would of spoke to him sooner! woulda saved lots of money....