kaot1k

iTrader: (2)

Hey Everyone,

Just noticed for the second time that when I take 1st gear to past 6,000 RPM's and change into second the gas pedal keeps on the floor and I would have to hold on the brakes and clutch out of gear to get it unstuck. If you don't notice it you can literally run into another car.

Anyone had this issue yet? This is the same tranny that gives a hard time getting into reverse, gotta clutch in and yank the heck out of the shifter to get it to go into the reverse gear slot to get it in reverse.

Think that it could be a tranny issue? I am getting ready to replace my clutch in about 2 months as soon as the weather gets warm. Would like to know just in case I need to replace it.

Car is a 88 Vert that is completely bone stock.

Anyone with thoughts on this would be greatly appreciated.

classicauto

iTrader: (3)

do you mean that the gas pedal LITERALLY sticks to the floor?

spot_skater

Yeah, what ^ said. Does it STICK to the floor? Maybe the accelerator pedal is getting stuck on something, possibly a floor mat? Happened to me twice, scared the **** out of me.

There's no reason your transmission should have any effect on the accelerator being stuck.

James

kaot1k

iTrader: (2)

I don't think its literally stuck to the floor. I worded it wrong then.

It's as if someone was holding the throttle cable down and you had to hold the car down with brakes to make sure it does not run into something until you clutch in and take it out of second gear then the throttle cable gets released. When this is happening bear in mind that there is some serious redline going on until you can get it out of gear.

I have looked under the hood and there is nothing to affect the hold down of the throttle cable.

I have driven the car for 6 months without any issues other than normal minor rx-7 issues here and there.

This gets me kinda nervous as my wife drives the car also and I have stopped her from driving it as she will panick in a situation like this and likely get someone injured.

Any thoughts cause I am baffled.


Regards,

- Anil Singh

kaot1k

iTrader: (2)

No floor mats in the car. The only thing that I could think of getting stuck on the gas pedal is the cable for my hood release as that it the only thing that I fight with every other week. That is higher up from the pedals though.

It was scary the first time, good thing I was on a one way street with no traffic on a long block with no intersection coming up soon and I had time to hold down the brakes and get it out of gear.

spot_skater

Well, you're basically getting throttle when you don't want it. Check the throttle cable, and linkage. Maybe check your TPS, too? Maybe you've got a slow spot, and the resistance isn't increasing (or decreasing?) to what it should be. Sorry, I don't remember if the resistance increases with throttle or not.

To do it grab the specs and do a sweep test. Get a DVOM out and set it to the resistance scale. Probe the correct wires. You should have 1000 ohm resistance at idle, I know that. Then slowly have a friend depress the accelerator pedal or open the throttle off the TB. The resistance values should change (either higher or lower) with the different amounts of open in the throttle.

Say it's supposed to be 4000 ohms at WOT, slowly go from closed throttle (1000 ohm) to WOT. It should read nicely all the values between 1000 and 4000 ohms.

That's just an example, remember that. I'm not 100%, or even 90% if that's the way the TPS is set up, but that's how you do a sweep test to check it.

Good luck,
James

PS: Don't let wifey kill anyone!!

kaot1k

iTrader: (2)

Hey James,

Thanks for the info. That is a possibility that I am going to have to look into. Probaly get started on that on my week off from work.

Yeah I have banned my wife right now from driving the vert, she will never drive the car again because i told her that I will ban her completely after the car gets repainted and all the body work done and that is happening next month.

She has led me to rip hair off my head after looking at all the bumper chips and scrapes and her last one was a completely wrecked drivers side fender with the famous "I don't know how that happened" explanation.


Thank you again for the info, I am going to give it a try and see where I end up with it and get back if I don't get anywhere.

Regards,

- Anil Singh

Syonyk

The TPS has nothing to do with a sticking throttle condition.

I would do a very close examination of the throttle body area & make sure everything's there - I suspect a missing/broken throttle return spring could cause this (the high airflow at 6000 RPM being enough to keep the plates open).

Does it happen free revving in neutral?

-=Russ=-

kaot1k

iTrader: (2)

Well my exhaust is shot right now and I am replacing it next week with a full Racing Beat set up.

The car does manage to idle though at 900 RPM's with a hole near the car and another at the Y-PIPE.

There is no issues at idling or revving. This is the second time that this happened. My clutch is almost gone and I have to ride whatever clutch that is remaining by gaining enough RPM's to get the car going on into first gear and if I immediately throw the tranny into 2nd gear at above 6,000 RPM'S then that is where I get the issue at.

I was trying to catch a green light last time it happened so I was at 6,000 RPM's on 1st gear and moving into second when the throttle got stuck.

Bear in mind that there is an immense amount of white smoke coming out of my exhaust system after I manage to get the car out of gear and calmed down.

BigMike85

I know on other cars you can spray carb cleaner or something like that in the throttle cable... maybe there is some grime in there? But that wouldnt explain why it only happens after 6k RPM... check your return spring like mentioned above.

Alex6969

hows you coolant level doing? white smoke is coolant being burned off in the combustion chamber.

arghx

iTrader: (3)

holy **** dude this has happened to me a couple times

Check your cruise control cable, it might be getting hung up.