The engine turns over but won't start if the car has been sitting for more than a few hours. The alternator and battery were just replaced but I'm still having the same problem. What could it be?
1996 Chevrolet Blazer
I have replaced the alternator and battery. After the car has been sitting for a while and won't start, a jumpstart will always get it started. But without a jump it will just turn over, not starting until the battery dies or I give up, whichever comes first. Someone had suggested it may be the fuel pump but the mechanic said it wasn't.
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1996 Chevy Blazer with 87000 miles on it. V-6 4.3l
You could have a bad fuel pump. I would rec to check fuel pressure. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! But if the pressure is low, it does not mean the pump is bad. A plugged fuel filter, a pinched line, and low voltage at the pump can contribute to low fuel pressure. All three must be check before replacing the pump! You can get a fuel pressure gage at a local auto parts store for cheap.
ASE MASTER TECH ADVANCED LEVEL SPECIALIST