Question about Cars & Trucks
Your best bet , take to a qualified repair shop that has the right diagnostic test equipment and has the knowledge to use it . 003 Engine Peformance Tests Scan Data Tests
Guessing and replacing parts is not the correct way to diagnose an fix cars
Posted on Aug 12, 2017
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Posted on Jan 02, 2017
fuel pressure? tbi needs like 14 lbs.
ECM failure is also a thought,they had a habit I recall
The backfire part is odd, would think crank sensor or lock up solonid
but it wouldn't backfire. Tough one ,hoping someone else will
Posted on Apr 15, 2013
SOURCE: I have 2000 Oldsmobie Bravada that spits and sputters every time I hit the gas. I've had an induction, transmission flush, tune up (all new wires and spark plugs), new EGR valve, new throttle positio
I went through this problem, and did everything you did, even the SeaFoam. Turns out, the new distributor caps I bought were defective. I switched it out to another brand, worked for a day and then sputtered again. I read somewhere that (FOR THIS VEHICLE) aftermarket caps and rotors aren't manufactured correctly, causing arcing. Switched the cap and rotor to AC Delco brand, and all ran good, going on 1 year now with no problems.
Posted on Mar 27, 2015
jerking can be a number of things, as you say you have cleaned the throttle body new filter for the fuel, when cleaning its best to change the air filter or at least checking it to make sure its clean and not blocked up. you can also sometime inadvertently dislodge something in the fuel line and this can limit the fuel, but i would thing it would show more signs, it could need the spark plugs cleaning, it could be a build up of carbon on the plugs and now the system is cleaner the mix is not igniting good, so i would check and clean them, lower rev's need a better spark. i would also check the breather lines from the cam to the intake especially the thine one as this can block up and limit the airflow into the engine. so really its just clean these parts and see if there is any change.
Posted on Aug 06, 2017
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