I step on the gas, my foot is off the clutch pedal completely, the car revs, but doesn't catch. Then after I let off the gas enough, everything catches and if I accelerate slowly, everything is fine. But as soon as I step on it again, same situation. And I don't even have to mash it to the floor for this to happen. This is like anything over quarter throttle at once. I was thinking it had something to do with TPS misadjustment, but that didn't seem to work for me. And I just gave the car a good tune up: coil, wires, plugs, dist. & cap, etc.... What's going on here?

 

Sounds like the clutch is fried and slipping badly. Time for a new one. Any probs changing gears?

 

All the shifting is going fine as far as moving the shifer between gears. It's just that I step on the gas and it's like I'm in neutral.

 

i have the same prob, exept i will accelerate pretty fast with the gas pedal ALMOST floored, but as soon as i push it all the way, even if i do it slowly, my car kinda SLOWS DOWN like i let OFF the gas? only in 3rd, 4th, and 5th gear? maybe my carb needs to be adjusted?

 

BTTT. So does the clutch sound like a good bet?? Could it possibly be the clutch cable?

 

Can't be the cable 'cause there is no cable. 82-83 used mechanical linkage, 84-on is hydraulic.

Anything else going wrong would prevent the clutch from disengaging, the opposite of your problem.

Looks like you're replacing a clutch.

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Zslug

May the road rise to meet your treads...

'84Z, 5sp, stock 305, Edelbrock intake, GTA wheels

 

My favorite clutch test:

Take off and shift from 1st to 3rd at a low speed and floor it. If the motor revs and it don't bog...you need a clutch.

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ASE Mechanic/Machinist/Smog Tech

RTKTGTR 1999 NBM T/A, flowmaster,FRA,Pro Kit,BMR STB, polished calipers.
1986 Chevy 3/4 ton pick up,flowmasters,4.10s,
1981 corvette FOR SALE
1995 ZX6R,Yosh,D207s

GO #3

 

Son of a beyatch. I could really go without this right now. Oh well. It might as well happen now when everything else is being replaced.

 

Silly, the other guys are right, you need a clutch. Not what you want to hear, but think of it this way: you get the opportunity to improve your car a little. Get a Centerforce Dual Friction, it's smooth as silk when you are in bumper-to-bumper traffic, but hooks up like a piece of metal when you stand on it.

radiaki, the carb is a good guess in your case; sounds like the secondary air valve spring is too loose. Tighten it p in 1/9 turn increments and see if that doesn's help it.

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"So many Mustangs, so little time..."