Question: Tranny And Starting

sleeper_stang_2000 · 03-22-2004, 02:06 PM

I purchased a 1991 GT Conv Automatic. Car won't start when it's hot (starts perfect cold). The engine turns but won't completely turn on. Already replaced spark plugs, battery, battery cables, dist cap and rotor. I also checked the PCV valve and fuel pump. Any ideas on what it could be?

Second question: Tranny shifts super hard and when I floor it, the revs are cut short between shifts (revs only go to approx 2500 rpms). Fluid level is correct. Any ideas? Thanks!

GhettoPop · 03-22-2004, 02:59 PM

for the starting problem, maybe a bad TFI module?

tmoss · 03-23-2004, 08:05 AM

If the engine turns too slow to start it oculd be a worn starter too.

sleeper_stang_2000 · 03-28-2004, 02:32 PM

THERE HAVE TO BE OTHER OPINIONS OUT THERE?!

KiltedBanshees93GT · 03-28-2004, 03:49 PM

I agree with tmoss, what youve said so far sounds like heat sink on the starter, my '66 does the same thing.
So does the engine seem to "lug" when you try to start it? Longtube headers can make things worse by being closer to the starter. Also having a high torque "mini" starter is not a bad idea (if you dont already have one from the factory).

As for the tranny problem, I'm not sure, but does the car have a shift kit? Sounds like something is going wonky in the valve body. My first thing would be to replace the fluid and filter. beyond that...
Does it shift properly when you do it manually?

J

sedanman · 03-29-2004, 12:36 AM

Definately sounds like heat sink on the starter. As for the auto does it shift early even when floored? Be sure to check the TV cable that would cause early and harsh shifts. If you don't fix it the tranny will take a ****. I am not real sure how they work on fords (since I have never owned a ford auto nor have my freinds) but with Gm's you bend a tab then floor the gas and it is set.

03-22-2004, 02:06 PM	#1
sleeper_stang_2000 Registered Member Join Date: Mar 2003 Location: south florida Posts: 45	Question: Tranny And Starting I purchased a 1991 GT Conv Automatic. Car won't start when it's hot (starts perfect cold). The engine turns but won't completely turn on. Already replaced spark plugs, battery, battery cables, dist cap and rotor. I also checked the PCV valve and fuel pump. Any ideas on what it could be? Second question: Tranny shifts super hard and when I floor it, the revs are cut short between shifts (revs only go to approx 2500 rpms). Fluid level is correct. Any ideas? Thanks! __________________ 2000 GT Coupe Automatic! CAI, X-Pipe, Eibach Pro, 100 Shot NOS Best run: 12.187 @112.9 w/ 1.75 60ft. 3ft Above Sea evel

03-22-2004, 02:59 PM	#2
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	for the starting problem, maybe a bad TFI module? __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

03-23-2004, 08:05 AM	#3
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	If the engine turns too slow to start it oculd be a worn starter too. __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

03-28-2004, 02:32 PM	#4
sleeper_stang_2000 Registered Member Join Date: Mar 2003 Location: south florida Posts: 45	THERE HAVE TO BE OTHER OPINIONS OUT THERE?! __________________ 2000 GT Coupe Automatic! CAI, X-Pipe, Eibach Pro, 100 Shot NOS Best run: 12.187 @112.9 w/ 1.75 60ft. 3ft Above Sea evel

03-28-2004, 03:49 PM	#5
KiltedBanshees93GT Registered Member Join Date: Jun 2000 Location: Pigeon Forge Tn Posts: 611	I agree with tmoss, what youve said so far sounds like heat sink on the starter, my '66 does the same thing. So does the engine seem to "lug" when you try to start it? Longtube headers can make things worse by being closer to the starter. Also having a high torque "mini" starter is not a bad idea (if you dont already have one from the factory). As for the tranny problem, I'm not sure, but does the car have a shift kit? Sounds like something is going wonky in the valve body. My first thing would be to replace the fluid and filter. beyond that... Does it shift properly when you do it manually? J __________________ ____________ '66 Mustang Coupe- AKA "Lenore" on disability for a (long) bit '93 GT Mostly stock AKA "Fawkes" Rice Haters Club Member #239 "I find your lack of faith...disturbing." "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats." H. L. Mencken

03-29-2004, 12:36 AM	#6
sedanman Registered Member Join Date: Feb 1999 Location: Indianapolis, IN Posts: 963	Definately sounds like heat sink on the starter. As for the auto does it shift early even when floored? Be sure to check the TV cable that would cause early and harsh shifts. If you don't fix it the tranny will take a ****. I am not real sure how they work on fords (since I have never owned a ford auto nor have my freinds) but with Gm's you bend a tab then floor the gas and it is set. __________________ 04 Screamin Yellow Cobra KB 2.4 (585/556 pump 626/666 race) 00R brakes, DFX clutch, Level 5's, return fuel system, Lts with 3" exhuast, FR500 wheels and all the other fun stuff. GONE 1991 Lx sedan 5.0, 5spd (Liberty proshifted TKO) S-trim, Ported TF heads everything parted out.

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