North American Turbocoupe Organization



I'm starting to hate my car
Sal Offline
Junior Member
#1
Ok so I have an 88 TC 5 speed. Its all stock.
It was driving fine, until somewhere around the start of July. It started bucking a little bit, so I thought it was a dirty fuel filter.

It starts with no issues, sounds great at idle, the engine revs perfectly all the way to 6k.

But when I put it in gear and try to drive it, it bucks and jolts really bad. I can still drive it but I have to work the clutch and gas pedals to get it going. It drives like crap for about 4-5 miles, but after that it rides great. WTF!

I replaced the tps, plugs and wires twice, IAC, VAM, throttle body, injectors, fuel filter many times, fuel pump strainer, checked for codes and gets 34 (EGR thing no big deal), checked all the vacuum lines, bypassed the egr. And other stuff.


Im really considering a v8 engine swap. I hate this BS. The car has sat for about a month and a half and I cant figure this out. Im frigging pissed. I have used the search feature many times but I cant find a solution.
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4cammer72 Offline
Posting Freak
#2
sounds like the coolant temp sensor.. sensor between injectors 2 and 3....
88tc (sold) but keeping an eye out.
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Pete D Offline
Administrator
#3
What codes did you get for each phase of the test?
Also try running the fuel system diagnostics if there are no codes;
http://www.turbotbird.com/techinfo/Fuel_...ostics.htm
Pete Dunham


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Sal Offline
Junior Member
#4
When I hook up my code reader I get insufficient egr flow with the car on or off.

The car has good fuel pressure, it gets up to 50psi
on the pressure tester. I checked and tested each injector and they all work fine. I took apart the intake to demount the fuel rail, connected the ground to the test connector to run the pump with the injectors still on, it popped off one of them, so it has great pressure. No leaks

I'll take a look at the temp sensor.
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86 XR7 5spd Offline
Senior Member
#5
bucking/surging at startup may be TFI/PIP

http://www.turbotbird.com/faqs/#Engine%2...uns%20fine


http://www.turbotbird.com/techinfo/TFI-PIP/TFI-PIP.htm
David T
T5 / ported E3 / .63 / 35# / K&N
2.5" exhaust w/ cherry bomb
30+ mpg! 8.2 0-60, [email protected] 1/4 (gTech)
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Jeff K Offline
Administrator
#6
^^^^^ +1

Classic TFI / PIP issue. EIther they are fine cold and act up warm, or act up cold and improve warm.

Replace both at the same time, as recommended by Ford.
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
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BJL Offline
Moderator
#7
my blue TC used to do that, my dad said it had spirtial issues cuz once it got a a minute of running the idle would rev up and down real fast. did ti everytime. drove me nuts for years. then i replaced the TFI by the advice of Pete, Jeff, and Bob P. and it went away, my 88 does it now too. but i dont mind brings back memories!
Brian Larkin
88TC 330,000 miles
Slightly Modified
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Sal Offline
Junior Member
#8
I bought a refurbished distributor from autozone, I got the one with the module already installed.

I threw it on, and it seems to be worse. It starts and idles at 500rpm. Takes a couple of minutes for it to get up to 1000rpm.

After that, I can drive it. It doesnt really bog down as much as before, but now it feels as if the emergency brake is stuck on; and its not.

The turbo is spinning really fast at idle, and when I rev the engine, it goes all the way up to 18psi @ around 2500rpm.

This happens with the "NEW" distributor and with another distributor from my non running 88TC.

With the old distributor, it idles and sounds great, but bogs down under acceleration.
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turbobike Offline
Member
#9
I hope the tfi and pip where Motorcraft. After market parts don't work so well.
85 TC,86 TC,65 Mustang GT
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Huey866 Offline
Posting Freak
#10
Did you unplug the spout when you replaced the distributor? If not, then your timing is extremely off and would explain the boosting at low rpms. The spout is a little black plug connected to 2 wires that come out of the tfi harness. Un plugging it disconnects the computers ability to control timing and allows you to set you 10° btc base timing.
87 TurboCoupe - silver, 137k, 5-speed, 3.73, 5 lug swap, MM... Evertything, 03 Cobra Brakes, Griggs Subframe connectors, Bo 1.5, Big Valves, massaged 79 turbo head, Essy Cam Gear, Boblog + Elbow, .63 T-3, Stinger Exhaust/FMIC

Currently dreaming about ball-bearings and Pimps
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