Please help if it works I will make a dotation big

BRISKY31

MEMBER
PONTIAC GRAND AM

I have a 1990 poniac grad am 4 cylender 2.5 157, ooo
miles on it a standerd car my question is it wont start for a while the motor would jump real hard in the morning and take along time to start the battier keeps gone died every day wants it got started it would start all day with out a proublem now the car wont start at all it keeps flooding it self out it backfires and I got it to start once and I had to hold the gas down to keep it running soon as I let off the gas it would die I have changed several parts on it timming chain, throttle body, crank sensor, coil pack, computer, fuel pressure regulater, intake senser, spark plugs, map sensor, fuel injecter car still wont run just turns over and back fires please help I have kids :(

1 Reply

BLACKOP555

MECHANIC
10,371 POSTS

Try a new fuel pump if that does not remedy check the Throttle position sensor and the Idle air control.

When you say it floods itself out you know its getting gas to the engine or are you guessing. It still sounds to me that its getting not enough fuel or too much.

When you changed the timing chain did you line up the marks on the cam and crank shaft?

Your car may have also jumped time. Take off #1spark plug off and turn the car over slowly with your finger over hole until you feel a burst of air with a little suction at the end. Take off distributor cap and see if the rotor is pointing to the #1 wire, if not it jumped time.