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Q: I have a hard start(long cranking) problem when the car is warm 1996 Chevrolet Impala

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The car starts right up in the morning if its cold. But if its warm or damp, it cranks then eventually starts. once started, it runs great but i only travel about 7 miles to work so i don't know how it would do on a long trip. I've had recent work done to it but i had the problem before the work. Recent work includes, timing chain, crank sensor(3x), transmission seals,distributor(3x),torque converter,ignition control module(3x),ignition coil(2x),coolant temp sensor. Fuel pressure was checked and it checked at 40-45lb for at least 5min. I checked the regulator for fuel discharge and did not see any fuel. I did smell fuel but don't know if that was because i wanted to smell fuel so that i can blame the regulator. I'm stumped and can't figure it out. Can you please advise

My car has 156500 miles.
My car has an automatic transmission.

Hi there - first step is to check for problem codes, whether the Check Engine light is on or not. I suspect you still have a fuel pressure problem when it’s hot. Check fuel pressure while starting cold, while it’s running, shut it off, then while it’s sitting (hot), and during a re-start attempt. I suspect it will be low when re-starting, then slowly come up to pressure. This could be the fuel pressure regulator, but also the fuel pump or fuel pump relay (burned contacts). I recommend a hard starting inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

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