No Reverse! Yikes!
Thread Starter
Instructor
Joined: Sep 2013
Posts: 159
Likes: 3
No Reverse! Yikes!
I had my 2014 up on front ramps for a week. When I went to pull it down I was locked out of reverse. I was able to get down with a hand push in neutral and ran it for a couple miles. Reverse now works but got an email from Onstar to call and have them run diagnostics for engine/transmission issue. I did and no problem was found.
Anyone else see anything like this?
Anyone else see anything like this?
Instructor
Joined: Oct 2013
Posts: 117
Likes: 10
I had my 2014 up on front ramps for a week. When I went to pull it down I was locked out of reverse. I was able to get down with a hand push in neutral and ran it for a couple miles. Reverse now works but got an email from Onstar to call and have them run diagnostics for engine/transmission issue. I did and no problem was found.
Anyone else see anything like this?
Anyone else see anything like this?
Burning Brakes
Joined: Jun 2014
Posts: 981
Likes: 157
What gear was the transmission in while up on the ramps?
Did you contact OnStar before getting the email from them?
If the car was left in gear, and it was the only thing holding the car in place (that is, the parking brake wasn't fully engaged), the mounts for the engine and transmission would have been loaded in one direction for a week. That may have affected the alignment of the shift linkage, making it impossible to engage reverse. Driving the car let the mounts relax, and it started working again.
Did you contact OnStar before getting the email from them?
If the car was left in gear, and it was the only thing holding the car in place (that is, the parking brake wasn't fully engaged), the mounts for the engine and transmission would have been loaded in one direction for a week. That may have affected the alignment of the shift linkage, making it impossible to engage reverse. Driving the car let the mounts relax, and it started working again.
Last edited by WelderGuy; Nov 9, 2014 at 01:25 AM.
Thread Starter
Instructor
Joined: Sep 2013
Posts: 159
Likes: 3
What gear was the transmission in while up on the ramps?
Did you contact OnStar before getting the email from them?
If the car was left in gear, and it was the only thing holding the car in place (that is, the parking brake wasn't fully engaged), the mounts for the engine and transmission would have been loaded in one direction for a week. That may have affected the alignment of the shift linkage, making it impossible to engage reverse. Driving the car let the mounts relax, and it started working again.
Did you contact OnStar before getting the email from them?
If the car was left in gear, and it was the only thing holding the car in place (that is, the parking brake wasn't fully engaged), the mounts for the engine and transmission would have been loaded in one direction for a week. That may have affected the alignment of the shift linkage, making it impossible to engage reverse. Driving the car let the mounts relax, and it started working again.
Thread Starter
Instructor
Joined: Sep 2013
Posts: 159
Likes: 3
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Burning Brakes
Joined: Jun 2014
Posts: 981
Likes: 157
Unless the full weight of the car was resting on the chocks BEFORE the car was placed in gear and the brake set, some movement of the car was possible. It was just enough to load the engine/transmission mounts to one side, and leaving it there for a week caused it to stay there after the car was moved. Apparently it was just enough to keep the linkage from going into reverse.
I'd imagine the chocks were placed after the brake was set and the transmission placed in gear. It would only take a little movement to torque the drive train to one side.
That's probably the one scenario GM didn't think of when they designed and tested the linkage.
That's just an explanation that makes sense to me. If you've got a better explanation, let's hear it.
I'd imagine the chocks were placed after the brake was set and the transmission placed in gear. It would only take a little movement to torque the drive train to one side.
That's probably the one scenario GM didn't think of when they designed and tested the linkage.
That's just an explanation that makes sense to me. If you've got a better explanation, let's hear it.
Last edited by WelderGuy; Nov 9, 2014 at 04:11 PM.
Race Director
Joined: Jul 2010
Posts: 10,548
Likes: 176
From: Upstate NY
You might have needed to jog the car forward a little to engage reverse? Every manual I have owned at one time or another won't go into reverse at times. A little forward jog usually solved the problem. I understand you were on ramps and may not have been able to do that. My point is there may not have been an actual fault.
Thread Starter
Instructor
Joined: Sep 2013
Posts: 159
Likes: 3
This is what I received from OnStar, I believe it's just my normal monthly report:
OnStar Vehicle Diagnostics from your 2014 Chevrolet Corvette Stingray as of 11/07/2014
Dear xxxxxxxx,
There is a diagnostic alert for your vehicle this month requiring immediate attention. Please see the Diagnostic Information for details on your key operating systems. It is critical that you take care of this issue promptly to maintain the safe operation of your vehicle.
Immediate Attention
DIAGNOSTIC INFORMATION VEHICLE INFORMATION
Engine and Transmission System
• There may be an issue requiring action. Push your blue OnStar button and request an On-Demand Diagnostics Check.
OnStar Vehicle Diagnostics from your 2014 Chevrolet Corvette Stingray as of 11/07/2014
Dear xxxxxxxx,
There is a diagnostic alert for your vehicle this month requiring immediate attention. Please see the Diagnostic Information for details on your key operating systems. It is critical that you take care of this issue promptly to maintain the safe operation of your vehicle.
Immediate Attention
DIAGNOSTIC INFORMATION VEHICLE INFORMATION
Engine and Transmission System
• There may be an issue requiring action. Push your blue OnStar button and request an On-Demand Diagnostics Check.