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Tim West
Tim West, ASE Certified Technician
Category: Car
Satisfied Customers: 4638
Experience:  ASE Certified Service Manager for Bridgstone/ Firestone
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1988 Chevy: fine till..accelerate...Have checked hoses and fuel filter

Customer Question

1988 Chevy engine....ran fine till Wednesday started sputtering when I tried to accelerate.Have checked hoses and fuel filter,and air filter.can you help?
Submitted: 8 years ago.
Category: Car
Expert:  Tim West replied 8 years ago.
Sounds like it could be running lean.
Try this first.
Remove the MAF(mass air flow or air flow sensor) and clean it off (do not use solvents) Leave the MAF unplugged.
remove the pcv valve (replace if needed)
While the MAF and PCV removed, take off the oil cap and feel for vacuum.
If there is vacuum, you might need furtuer inspection. If no vacuum in crankcase replace MAF oil cap and PCV and recheck.
Customer: replied 8 years ago.
what about spark plugs and/or fuel pump?
Expert:  Tim West replied 8 years ago.
Absolutely want to check those. I just did not want to put too much at one time.
If you want to check the plugs, look for fouled fuel soaked plugs. If it was a misfire probably wouldn't sputter, but run very rough. Before the pump, how does it start? Slow ? Ok?
Does the sputtering happen all the time? Or more in the A.M. or when it's hot? Try to let me know as much detail as possible.

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