V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Intermittent dead

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Old Mar 20, 2006 | 09:39 PM
  #1  
inisross's Avatar
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Joined: Oct 2005
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From: Rainier, OR
Intermittent dead

Thanks to all who have helped me with questions for my husband's 700r4 to T5 conversion project. Our 1988 Camaro V6 RS is still not on the road as it has been much more involved than any of the the tech articles, unfortunately.

To update, we used a T5 and clutch from an 85 Camaro. Replaced the Auto chip in the ECM for one for a T5. Transmission is in and there were problems with the transmission. Drove 75 miles to exchange it, and when he got it in, it vibrated so badly inside the car it shook your teeth!............Discovered an 85 is an externally balance motor, and an 88 is internally balanced. So after already surfacing the flywheel, it had to come out. And naturally there were none to be found West of the Rockies without paying $300 at the dealership. So ordered one online, and just to let those interested know, online ordering through Auto Parts Network has been a very good experience. Now flywheel from Missouri has come and been installed, but the transmission has bad syncros. It is guaranteed, we just need to drive up there to let them see..........Now to current problem!

We have replaced the auto module in the ECM with a manual module, battery, the key lock cylinder, & most all sensors.The car does not have Vats, and to our knowledge hasn't had. Problem is my husband will go out to start the car and NOTHING. No lights interior or otherwise, no spark, just dead. He has tested the system and has power to starter etc, he has checked all the voltage in the system, checked wires, grounds etc. It just seems to make up its own mind as to when it will start again. It has nothing to do with whether it is cold or hot inside or out. HELP, what next?

After working on it steadly for 2 1/2 months, We need to get this car on the road before he "blows" it up, litterally!

Please any ideas would be appreciated.
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Old Mar 20, 2006 | 10:29 PM
  #2  
Naft's Avatar
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Joined: Oct 2004
Posts: 539
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From: Chico, CA
Car: 89 Firebird, 92 RS
Engine: 2.8L MPFI, 355 TPI
Transmission: t-5, t-5
Axle/Gears: open 3.42, posi 3.42
check the clutch switch . . . the clutch has to be depressed to start the car, and sometimes the switch that the clutch pushes gets misaligned and doesnt get engaged when the clutch is depressed. I know, mine does it right now.

although if you arent getting any interior lights it may likely be something else . . .
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Old Mar 21, 2006 | 05:46 AM
  #3  
Dale's Avatar
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Joined: Jun 2002
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From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
Originally Posted by Naft
check the clutch switch . . . the clutch has to be depressed to start the car, and sometimes the switch that the clutch pushes gets misaligned and doesnt get engaged when the clutch is depressed. I know, mine does it right now.

although if you arent getting any interior lights it may likely be something else . . .
Almost word for word what I was thinking. Except my clutch switch ordeal was last year, and is replaced
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Old Apr 1, 2006 | 11:09 AM
  #4  
inisross's Avatar
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From: Rainier, OR
Internittent Dead!

Well, My husband spent one whole night following wires and connections redoing and cleaning connections. He thinks he found the problem, and so far so good.

After replacing front and rear brakes, rear shocks, it is finally on the road!

For those that have helped in answering questions, again I thank you. For those who wish to do this 700R4 to T5 in the future, be sure to take into consideration such things as motor to transmission years for the externally or internally balanced motors and flywheels, as that was never mentioned to us. Also since ours is an 88 RS V6 and was only made for sale in CA, TX, & FL, in 87 only in CA, we had to change a relay in the Prom.

All runs great, but what a learning experience.
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