Stalling ....
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,558
Likes: 180
From: Payson AZ
Stalling ....
Parked the Beast couple months ago with full tank of gas. Went out yesterday to take it out for a spin. Fired right up with the usual "wake the neighbor up" roar. Let it idle while gathering up some items I wanted to take with me.
Car sputtered a few times, then stalled. Started right up again, idled good for a minute or so then stalled out. Engine revs would drop then raise, then drop then raise then die on me. Don't have any trouble starting but same thing happens. No Check Engine light or code.
I've had the car sit much longer than that without having an issue. It's a 2016 with about 7200 miles on it.
Gas gone bad? If put in some Octane booster and injector cleaner think I could keep it running and take a long drive to burn off the tank?
Thanks...
Car sputtered a few times, then stalled. Started right up again, idled good for a minute or so then stalled out. Engine revs would drop then raise, then drop then raise then die on me. Don't have any trouble starting but same thing happens. No Check Engine light or code.
I've had the car sit much longer than that without having an issue. It's a 2016 with about 7200 miles on it.
Gas gone bad? If put in some Octane booster and injector cleaner think I could keep it running and take a long drive to burn off the tank?
Thanks...
Last edited by azcanuk; Jul 30, 2021 at 04:02 PM.
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,558
Likes: 180
From: Payson AZ
If vacuum leak, would it throw a code? Nothing is showing, check engine light is not on.
Last edited by azcanuk; Jul 30, 2021 at 05:31 PM.
Racer
Joined: Dec 2015
Posts: 314
Likes: 154
Where I live rodents are aggressive. Anything that sits over night can be a target and you just never know what component on the vehicle they will attack. Had knock sensors chewed on a tundra and o2 sensor on MB and the ecm wires on my truck and camper brake lights etc. I despise those little creatures.
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,558
Likes: 180
From: Payson AZ
Where I live rodents are aggressive. Anything that sits over night can be a target and you just never know what component on the vehicle they will attack. Had knock sensors chewed on a tundra and o2 sensor on MB and the ecm wires on my truck and camper brake lights etc. I despise those little creatures.
I've checked under the car and don't see anything on the garage floor so pretty sure it isn't electrical related.
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
Parked the Beast couple months ago with full tank of gas. Went out yesterday to take it out for a spin. Fired right up with the usual "wake the neighbor up" roar. Let it idle while gathering up some items I wanted to take with me.
Car sputtered a few times, then stalled. Started right up again, idled good for a minute or so then stalled out. Engine revs would drop then raise, then drop then raise then die on me. Don't have any trouble starting but same thing happens. No Check Engine light or code.
I've had the car sit much longer than that without having an issue. It's a 2016 with about 7200 miles on it.
Gas gone bad? If put in some Octane booster and injector cleaner think I could keep it running and take a long drive to burn off the tank?
Thanks...
Car sputtered a few times, then stalled. Started right up again, idled good for a minute or so then stalled out. Engine revs would drop then raise, then drop then raise then die on me. Don't have any trouble starting but same thing happens. No Check Engine light or code.
I've had the car sit much longer than that without having an issue. It's a 2016 with about 7200 miles on it.
Gas gone bad? If put in some Octane booster and injector cleaner think I could keep it running and take a long drive to burn off the tank?
Thanks...
Bill
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,558
Likes: 180
From: Payson AZ
Reconsidering the problem
Has anyone had an electrical short occur in their C7?
The night before I started to have the stalling issues there was a very strong odor in the garage, smelt like an electrical short of some sort. Since I have four vehicles all connected to battery tenders I immediately unplugged them all thinking must be one of the tenders shorting out.
I've since plugged them all back in, one at a time over several hours, and no smell. Beginning to wonder if the smell wasn't something shorting out in Beast.
I started it up again yesterday and if I kept the revs up around 1500, it seemed to run okay. When I let it back down to idle, it stalled after a minute or so. Cranked over a couple of seconds then fired right back up. Kept it running for about 5 minutes at about 1500 RPM then let it back down to idle. It idled for another 5 minutes before I shut it off.
Going to try and take it out on the road, see how it responds and hopefully put a hundred or so miles on it before taking it over to top off the tank.
So curious if anyone has had or knows of an issue with electrical shorts in the C7's.
Thanks again for any input!
The night before I started to have the stalling issues there was a very strong odor in the garage, smelt like an electrical short of some sort. Since I have four vehicles all connected to battery tenders I immediately unplugged them all thinking must be one of the tenders shorting out.
I've since plugged them all back in, one at a time over several hours, and no smell. Beginning to wonder if the smell wasn't something shorting out in Beast.
I started it up again yesterday and if I kept the revs up around 1500, it seemed to run okay. When I let it back down to idle, it stalled after a minute or so. Cranked over a couple of seconds then fired right back up. Kept it running for about 5 minutes at about 1500 RPM then let it back down to idle. It idled for another 5 minutes before I shut it off.
Going to try and take it out on the road, see how it responds and hopefully put a hundred or so miles on it before taking it over to top off the tank.
So curious if anyone has had or knows of an issue with electrical shorts in the C7's.
Thanks again for any input!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Jun 2002
Posts: 1,303
Likes: 151
From: Las Vegas Nevada
Could be a marginal alternator. If the battery is original, it should probably be replaced (or at least load tested).
My mother-in-law's car just had what I thought was a bad battery - ended up being an alternator (and the battery was weak, so I replaced it too). Her car would start and run at above idle RPM, but stall at idle.
Easy to check and not too hard to fix if that is the problem.
Jim
My mother-in-law's car just had what I thought was a bad battery - ended up being an alternator (and the battery was weak, so I replaced it too). Her car would start and run at above idle RPM, but stall at idle.
Easy to check and not too hard to fix if that is the problem.
Jim
Race Director
Joined: Jun 2013
Posts: 12,414
Likes: 1,750
From: DFW TX
Fill it up with new gas & a bottle of techron / seafoam. Do an Italian tuneup 
I bet it's fine. A bad battery will not cause an already started & idling car to die.... Same with a vac leak, it would misbehave immediately. Trying to burn a puddle of water, well, the engine will suffer.
I bet it's fine. A bad battery will not cause an already started & idling car to die.... Same with a vac leak, it would misbehave immediately. Trying to burn a puddle of water, well, the engine will suffer.
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,558
Likes: 180
From: Payson AZ
Fill it up with new gas & a bottle of techron / seafoam. Do an Italian tuneup I bet it's fine. A bad battery will not cause an already started & idling car to die.... Same with a vac leak, it would misbehave immediately. Trying to burn a puddle of water, well, the engine will suffer.
I bet it's fine. A bad battery will not cause an already started & idling car to die.... Same with a vac leak, it would misbehave immediately. Trying to burn a puddle of water, well, the engine will suffer.Even though the gas in the tank wasn't all that old I suspect that was the issue..
Race Director
Joined: Jun 2013
Posts: 12,414
Likes: 1,750
From: DFW TX
Think my "Italian tune-up" did the trick.... managed to get a bottle of Lucas Octane boost and Fuel injector cleaner into the Beast. Let it sit for a day then cranked it up, let it idle for a while then backed it out and took it out on the highway, performed like the Beast of old!
Even though the gas in the tank wasn't all that old I suspect that was the issue..
Even though the gas in the tank wasn't all that old I suspect that was the issue..
Hope that was a one-off and does not repeat!