Close
Hard starting
1991 Chevrolet Caprice

Hard starting

(1991 Chevrolet Caprice)
I have a 1991 Chevrolet Caprice with 5.0 liter V-8 which has recently developed a hard starting problem, you have to crank the engine more than usual before it will start and it surges when idling after it starts and hesitates badly when trying to accelerate. Engine has been tuned recently, new spark plugs, plug wires, distributor cap, rotor, fuel and air filters. Engine runs excellent after it warms up. I found that it would start instantly with the coolant temperature sensor unplugged so I replaced that sensor and it made no difference. I suspect the throttle position sensor may be bad but I'd like some more info before i replace anything else. the car has 130,000 miles on it, and is in excellent, well-maintained condition. Any ideas ?
in Wixom, MI on September 09, 2010
Ask a Question
1 answer & 1 comment
Popular Answer
on September 10, 2010
It sounds like your 1991 Chevrolet Caprice has some sort of fuel pump issue to me. I would suggest to check fuel pressure before doing anything else.
Sign in to reply
on September 15, 2010
Nothing wrong with the fuel pump, just that I'm not getting a rich enough fuel mixture on cold starts.
Coolant Leak Diagnosis
$88 - $111 Learn More
on September 10, 2010
It sounds like your 1991 Chevrolet Caprice has some sort of fuel pump issue to me. I would suggest to check fuel pressure before doing anything else.
Sign in to reply
on September 15, 2010
Nothing wrong with the fuel pump, just that I'm not getting a rich enough fuel mixture on cold starts.

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
My car dies after about 20 mins with key in accessory after about 30-45 min it will start right back up with no...
Car was running fine. i shut it off and had to dettach a wire that has been straight wired for my cooling fan. when i...