hard cold start
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From: Bothell wa
Car: 1988 PONTIAC GTA TRANS AM
Engine: 305 TUNED PORT INJECTED
Transmission: T5 BORG WARNER 5 SPEED
Axle/Gears: 3.45 Positrac
hard cold start
finally got my car to run and it runs great! Get it sideways all the time : ). but i kinda noticed it sometimes has a really hard cold start ive replaced tons of parts such as fuel pump, filer. relay, fuel pressure regulator,spark plugs, spark plug wires, oil, coolant Etc. im thinking the injectors could be gummed up with crap? or maybe even bad gass what do you guys think it could be? Ps: i had to use starting fluid to get it started today to pull it into the garage to work on it let me know guys. : )
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: hard cold start
Check that the fuel pump runs at key-on, engine-off. Otherwise it takes a bunch of cranking to get the oil pressure up to operate the fuel pump.
While checking that check that the fuel pressure is between 43 and 47 psi. Low fuel pressure will also cause a hard start.
RBob.
{edited to change fuel pressure to those of a TPI system}
While checking that check that the fuel pressure is between 43 and 47 psi. Low fuel pressure will also cause a hard start.
RBob.
{edited to change fuel pressure to those of a TPI system}
Last edited by RBob; Dec 2, 2011 at 08:48 AM. Reason: Had TBI in my mind, should be TPI fuel pressures
Thread Starter
Junior Member
iTrader: (1)
Joined: Nov 2011
Posts: 33
Likes: 0
From: Bothell wa
Car: 1988 PONTIAC GTA TRANS AM
Engine: 305 TUNED PORT INJECTED
Transmission: T5 BORG WARNER 5 SPEED
Axle/Gears: 3.45 Positrac
Joined: Dec 2004
Posts: 16,694
Likes: 979
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: hard cold start
sea foam may work, you may have a issue with the thermo time switch.
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