North American Turbocoupe Organization

starting problems?
ForceFed2.3 Offline
Junior Member
I was wondering if anybody has an idea why when my car is cold it starts up fine but when it warms up and i shut it off and try starting it again you have to crank it over for about 3-4 seconds. I can't figure out why my car has really bad throttle response, when you tap the gas it seems like it wants to die, it will dip down then go up almost wanting to die.

Thanks, Jason

[This message has been edited by ForceFed2.3 (edited 01-26-2003).]

Dan S Offline
My '84 had the same problem which caused a lot of frustration until someone on the site suggested I change the fuel pressure regulator. That solved the problem on my TC.

Dan S
Dan S
Custom 88 TC, Mandarin Copper Pearl Metallic
1972 Ford F-100 SWB Styleside
2015 Lincoln MKC 2.3 EcoBoost AWD

Pete D Offline
Pull the codes and check the fuel pressure
Pete Dunham


Jeff K Offline
MEasure the rate fuel pressure drops off after you shut the car off. Should only drop a few pounds after 5-10 minutes. If it drops faster than that, either the FPR is bad, the check valve in the fuel pump is bad, or you have a leaky injector. Does it shoot out a puff of black smoke when it starts after the crank when it is hot? If so, probably a leaking injector.

Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 20 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 00 Windstar (wifes vehicle)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized

Chris Ruhl Offline
I would check the fuel pressure also, and I would also look at a ignition module problem.

Nate K Offline
Posting Freak
Don't overlook the obvious, a clogged fuel filter. Fuel filters should be changed about every third oil change or every 6 mths. I would start there, if problem still exist, test the fuel pressure as Jeff stated.
NATO Member
90 Mustang LX 5.0L Notch

Cars I wish I still owned:
69 Coronet 440
70 Torino 351C
79 Bronco 351M/400 on 35's
79 Trans Am 403 (6.6L)
88 Cougar XR7 5.0L
93 F150 Flareside Mark III Custom 5.0L

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