SOURCE: 1986 corvette 700R4 transmission will
Are you sure the TV ( trans shift cable at the throttle valve) cable is correctly adjusted?? Without line pressure readings, I can only guess that the D3/Part throttle check ball is missing, if it is a trans problem
If the TV is correct, I am assuming that the TV cable is pulled tight at WOT.
Did you check the throttle (ACCEL) cable to be sure that the carb goes wide open when your accel pedal is on the floor?? This must be done with someone in the car and a second person looking at the carb. Without doing this, you do not know if you have WOT. Without WOT, the trans will not de-tent and shift down.
SOURCE: 1984 camaro z28 gas gauge
float arm in the tank is either stuck or broken. its connected to the fuel pump assembly
SOURCE: 1995 camaro z28 keeps loosing fire
it might be the optispark harness wire.it starts and runs good. once u turn it off its hard to turn back on?
SOURCE: Gear Jerking in Camaro z28
first of all you need to fix the motor mounts drive shaft hangers and the lower control arm bushings and if you still have a transmission problem . it is in the valve body in the transmission you need to bring it to a good transmission shopas this will be a major tranny overhaul
SOURCE: 94 Camaro Z28 Missfire & Backfires
I had a similar problem, took it to get diagnosed and was instructed to give them $1100 because of a faulty reading on the distributer, rather than paying $650 for a unit I found plenty available new for under $200 I bought an OEM for $189. Now the labour can be found cheaper elsewhere. I then discovered that the module may also be at fault but I would have to replace the dizzy first, Then discovered that the Air Flow meter {afm} may need to be taken off and cleaned with a carby cleaning spray, this is a do it yourself fix costing you about $8 a can of cleaner
Unscrew the units clamps and disconnect the plug, I can't stress enough, DO NOT touch the fine wires inside, spray the carbon buildup off the inside and blow/air dry, {do not rinse with water.} reinstall the unit in the reverse of which it was removed, Alternativly you may have fuel blockage in the lines, try replacing the fuel filter {cheapest fix}
Hope this helps
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