Engine stumble on acceleration and then even out and i change fuel filter and still does this. How many fuel filters are on it?
Jun 7, 2017 at 12:36 PM
Engine stumble on acceleration
1995 CHEVROLET BERETTA
RODNEY12
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Hello,
There is only one fuel filter. Two things come to mind, first is a vacuum leak which can fool the MAF sensor causing the engine to stumble. Here is a guide to look for that
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Next is a weak fuel pump here is a guide to check that out.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
and
https://www.2carpros.com/articles/engine-hesitates
Please run some tests and get back to us so we can continue helping you.
Cheers, Ken
There is only one fuel filter. Two things come to mind, first is a vacuum leak which can fool the MAF sensor causing the engine to stumble. Here is a guide to look for that
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Next is a weak fuel pump here is a guide to check that out.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
and
https://www.2carpros.com/articles/engine-hesitates
Please run some tests and get back to us so we can continue helping you.
Cheers, Ken
Jun 9, 2017 at 8:35 PM
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