my 1992 buick La Sabre limited jerks on acceleration and it backfires,acts like it's going to die at a stop sign. This is after driving it for about 5 minutes. We've change fuel regulator,spark plugs, fuel filter and we still have the same problem my 1992 buick La Sabre limited jerks on acceleration and it backfires,acts like it's going to die at a stop sign. This is after driving it for about 5 minutes. We've change fuel regulator,spark plugs, fuel filter and we still have the same problem
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possible couple of things
low battery voltage by the system not charging enough
overheating component in the ignition system--coil failing when hot
engine overheating- no air flow around head and cylinder fins from dirt and rubbish
Hi Bennie, When did you last replace the fuel filter? I believe a service may be the answer to your problem. If you have carried out a service recently, try replacing the fuel filter for a better quality product. Regards John
The mass air flow often goes bad on them. Did you have the vehicle scanned. Try unplugging the mass air flow and driving it. It is built into the air intake hose. If that does not change things, check the fuel pressure, and the throttle position sensor.
I didn't see where you mentioned the MAF, or mass airflow sensor, my Volkswagon had the same problem. If I drove for more than 30min, the engine would basically bog, and sputter until basically you couldn't go but a few mph. Then you sit and wait maybe 20 min, and it ran fine for another 30min. Almost posotive!!!
my 1992 buick La Sabre limited jerks on acceleration and it backfires,acts like it's going to die at a stop sign. This is after driving it for about 5 minutes. We've change fuel regulator,spark plugs, fuel filter and we still have the same problem
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