ENGINE RUNAWAY - (reving without touching throttle) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

LDGn63 · 08-29-2009, 08:29 AM

2SS - 6M - 5800 miles.

I was driving into work this morning and i had cruise on. there is a big hill coming into town so i hit the clutch (turns off cruise) and slid into neutral and coast. I had been coasting for about 5-10 seconds and my engine starts reving... i'm thinkking WHAT THE HECK?
it hits about 3K so i tap the gas pedal (in the old days something might be stuck, but since this is all electric i'm thinking the switch migh be going haywire). that tap on the pedal brought it to 5K and i let off. it falls back to about 3500 and then starts to climb again... i hit the key and shut it down.
i coasted a little farther and started it back up and it was fine.

i have no idea of what just happened, but if my wife had been driving she might have freaked out... beware, and tell others to be prepared.

i truly hope that this is a once only occurance and it affects no one else. (and not me again either)

i am going to call the dealer later today.

anybody else have this happen?

Chewy · 08-29-2009, 08:33 AM

not with my camaro - no.

i had that happen with my BMW couple times (automatic). once it got stuck at full throttle in traffic...that was scary, not sure what caused it. The other time it lunged forward while i was parking, that time it was caused by a chip missing in a fan blade catching the throttle body cable.

that car has tried to kill me too many times...

Indpowr · 08-29-2009, 08:34 AM

Maybe your car was angry...

Can I teach my car to do that...

cab2g · 08-29-2009, 08:35 AM

Something similar happens to me rarely on my truck. But it happens almost instantly after depressing the clutch when using cruise control. My engine will rev up for a couple seconds. It is a computer bug, I think. If you can get your car to do this repeatedly, I'd take it in. Try disabling the cruise control using the controls on your steering wheel if it happens again (after depressing the clutch), then at least you can determine if it is the cruise control doing it.

5th Gen SS · 08-29-2009, 08:38 AM

It was telling you to stop being so nice and show it who's the boss

Krazy and old · 08-29-2009, 08:39 AM

Welcome to "throttle by wire" ie no physical link era. Nice idea to tap it but, you dont have a choke so not much to get "stuck". The butterfly is electric motor driven. Have you washed it or been in rain recently?

There were SEVERAL Mustang crashes happened due to unintended throttle when the 05's came out. It might happen again so have plan!

SlingShot · 08-29-2009, 09:22 AM

Sounds like the cruise was still engaged.... Either turn it off first or tap the brake... See if you can duplicate the problem, and report back your findings...

myold88 · 08-29-2009, 09:28 AM

Check your floor mat- Happened to me once. Turned the key off and pulled off the interstate and found the floor mat had slid into the gas pedal.

*radz28* · 08-29-2009, 09:29 AM

Maybe I'm misunderstanding, however, my '95 LT1 M6 would do that. I won't go so far as to say that's common, because I've never asked a friend to do that, but maybe the dealer can answer if that's right or not. I wouldn't suggest doing that again though, lol.

walls · 08-29-2009, 09:32 AM

It's a defective TIP sensor or loose wire to said TIP sensor. Throttle Input Position, I think. That also explains the problems you're having at WOT.

2010SLVRBULIT · 08-29-2009, 09:35 AM

cruise control still engaged, turn it off or tap the brakes.

DMAX · 08-29-2009, 09:47 AM

Quote:

Originally Posted by 2010SLVRBULIT

cruise control still engaged, turn it off or tap the brakes.

I agree with 2010slvrbulit .

LDGn63 · 08-29-2009, 10:10 AM

Quote:

Originally Posted by walls

It's a defective TIP sensor or loose wire to said TIP sensor. Throttle Input Position, I think. That also explains the problems you're having at WOT.

you may be onto something here! thanks!

i cut the cruise with the clutch ALL the time in ALL my vehicles with a stick. has NEVER been an issue.
I highly doubt it was the cruise because upon taping the clutch and putting in neutral, the engine went back to idle 5-10 seconds before it started revving. (but i will try to duplicate by doing the same again)

thanks all for the input!

walls · 08-29-2009, 10:14 AM

Quote:

Originally Posted by LDGn63

you may be onto something here! thanks!

i cut the cruise with the clutch ALL the time in ALL my vehicles with a stick. has NEVER been an issue.
I highly doubt it was the cruise because upon taping the clutch and putting in neutral, the engine went back to idle 5-10 seconds before it started revving. (but i will try to duplicate by doing the same again)

thanks all for the input!

I had a loose wire on the TIP sensor of my SRT-4 and I had the same problems you're having. Good luck!

08-29-2009, 08:29 AM	#1
LDGn63 Drives: WNABEE Join Date: Jan 2009 Location: DFW Posts: 538 View My Garage	ENGINE RUNAWAY - (reving without touching throttle) 2SS - 6M - 5800 miles. I was driving into work this morning and i had cruise on. there is a big hill coming into town so i hit the clutch (turns off cruise) and slid into neutral and coast. I had been coasting for about 5-10 seconds and my engine starts reving... i'm thinkking WHAT THE HECK? it hits about 3K so i tap the gas pedal (in the old days something might be stuck, but since this is all electric i'm thinking the switch migh be going haywire). that tap on the pedal brought it to 5K and i let off. it falls back to about 3500 and then starts to climb again... i hit the key and shut it down. i coasted a little farther and started it back up and it was fine. i have no idea of what just happened, but if my wife had been driving she might have freaked out... beware, and tell others to be prepared. i truly hope that this is a once only occurance and it affects no one else. (and not me again either) i am going to call the dealer later today. anybody else have this happen? __________________ Why oh Why? Windshield=10" vertical mirror= 3 7/8" (that's almost 4") vertical that means that the mirror is 38.75% the size of the vertical windshield... it sure seems like the ratio could be better... just sayin.... our collective MIRROR patch: http://www.camaro5.com/forums/showthread.php?t=24612

08-29-2009, 08:33 AM	#2
Chewy My boredom isn't safe Drives: 2010 SS Camaro Join Date: Sep 2008 Location: Jacksonville, FL Posts: 1,224 View My Garage	not with my camaro - no. i had that happen with my BMW couple times (automatic). once it got stuck at full throttle in traffic...that was scary, not sure what caused it. The other time it lunged forward while i was parking, that time it was caused by a chip missing in a fan blade catching the throttle body cable. that car has tried to kill me too many times... __________________

08-29-2009, 08:35 AM	#4
cab2g love. my. car. Drives: 2011 2SS/RS Join Date: Jul 2009 Location: Chicago Posts: 3,372 View My Garage	Something similar happens to me rarely on my truck. But it happens almost instantly after depressing the clutch when using cruise control. My engine will rev up for a couple seconds. It is a computer bug, I think. If you can get your car to do this repeatedly, I'd take it in. Try disabling the cruise control using the controls on your steering wheel if it happens again (after depressing the clutch), then at least you can determine if it is the cruise control doing it. __________________

08-29-2009, 09:22 AM	#7
SlingShot Drives: 2012 ZL1 - #670 Join Date: Jun 2009 Location: Seminole, Fl. Posts: 8,009	Sounds like the cruise was still engaged.... Either turn it off first or tap the brake... See if you can duplicate the problem, and report back your findings... __________________

08-29-2009, 09:29 AM	#9
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,201 View My Garage	Maybe I'm misunderstanding, however, my '95 LT1 M6 would do that. I won't go so far as to say that's common, because I've never asked a friend to do that, but maybe the dealer can answer if that's right or not. I wouldn't suggest doing that again though, lol. __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

08-29-2009, 08:34 AM	#3
Indpowr Account Suspended Drives: Corvette C6 Join Date: May 2008 Location: Florida Posts: 6,959 View My Garage	Maybe your car was angry... Can I teach my car to do that...

08-29-2009, 08:38 AM	#5
5th Gen SS Drives: 2010 2SS/RS M6 IOM and Black/IOM Join Date: Jul 2009 Location: Phoenix Posts: 152	It was telling you to stop being so nice and show it who's the boss

08-29-2009, 08:39 AM	#6
Krazy and old Drives: 2007 Shelby GT 500 Join Date: Oct 2008 Location: Az Posts: 335	Welcome to "throttle by wire" ie no physical link era. Nice idea to tap it but, you dont have a choke so not much to get "stuck". The butterfly is electric motor driven. Have you washed it or been in rain recently? There were SEVERAL Mustang crashes happened due to unintended throttle when the 05's came out. It might happen again so have plan!

08-29-2009, 09:28 AM	#8
myold88 Drives: SUMMIT WHITE 2SS/RS CAMARO Join Date: Feb 2008 Location: 2018: Lakewood Ranch, Fl. Posts: 8,112 View My Garage	Check your floor mat- Happened to me once. Turned the key off and pulled off the interstate and found the floor mat had slid into the gas pedal.

08-29-2009, 09:32 AM	#10
walls Drives: Infiniti G37S, Suzuki B-King Join Date: Jul 2009 Location: Dallas, TX Posts: 81	It's a defective TIP sensor or loose wire to said TIP sensor. Throttle Input Position, I think. That also explains the problems you're having at WOT. __________________ 2011 Ford Shelby GT500 - Black - SVTPP 2010 VW GTI - Black - Loaded 2008 Suzuki B-King - Black

08-29-2009, 09:35 AM	#11
2010SLVRBULIT Drives: G5(LLT) & C6(LS3) Join Date: Apr 2009 Location: MARS Posts: 7,527 View My Garage	cruise control still engaged, turn it off or tap the brakes.

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