2015 C7 Overheating
Thread Starter
Intermediate
Joined: Oct 2014
Posts: 34
Likes: 6
I agree, all Corvette forum members should write letters to GM requesting they upgrade their customer service to be more like Lexus - who have the best service and treat you like a king whenever you enter a dealership or have service done on your car. It would be nice to have an American car company be known as the best when it comes to products, quality control, customer service and reliability. When you pay what you have to pay for a new Corvette, it should be exempt from problems !
Maybe I'll start looking at the CTS-V???
Thread Starter
Intermediate
Joined: Oct 2014
Posts: 34
Likes: 6
Well I got my C7 back from the shop on 7/22/15 (was in the shop since 7/6/15). They replaced the radiator coolant manifold/assembly. Im not blaming the service center at all, the have to wait on the GM Engineers to tell them what to fix and how to fix it. Anyways on 8/2/15 it overheated again and spewed antifreeze all over the garage. This is the third time in 2 months my C7 has been in the shop for overheating problems.
Starting to consider buyback from GM as I really do not trust this car anymore. Car is not driven hard at all, its my wifes DD and is always "babied" by her.
Starting to consider buyback from GM as I really do not trust this car anymore. Car is not driven hard at all, its my wifes DD and is always "babied" by her.
Thread Starter
Intermediate
Joined: Oct 2014
Posts: 34
Likes: 6
They keep it for 2 weeks, tested engine for water in oil and followed GM Tech orders to replace coolant manifold. The service centers "hands are tied" in regards to what GM will pay for under warranty claim. I'm at the mercy of GM as to what the Service Dept can do.
Pro
Joined: Jan 2006
Posts: 541
Likes: 206
From: la verne ca
Mine has overheated twice the first time in they just checked the fan connecter and gave it back to me. Always overheated when in traffic going really slow. This time in GM had them take the pump off and inspect it plus change the fluid and replace the thermostat. Both times the fan was not running when it overheated. The difference I noticed now is the fan runs a lot more then it ever did and both the digital and analog gauges are only a few degrees different and before they were 20 degrees apart. Now when I'm in traffic I can hear the fan running at high speed and the gauge will drop from 220 to 210 and when its really hot the fan will run a few after I shut the car off which it never did before.
Thread Starter
Intermediate
Joined: Oct 2014
Posts: 34
Likes: 6
Mine has overheated twice the first time in they just checked the fan connecter and gave it back to me. Always overheated when in traffic going really slow. This time in GM had them take the pump off and inspect it plus change the fluid and replace the thermostat. Both times the fan was not running when it overheated. The difference I noticed now is the fan runs a lot more then it ever did and both the digital and analog gauges are only a few degrees different and before they were 20 degrees apart. Now when I'm in traffic I can hear the fan running at high speed and the gauge will drop from 220 to 210 and when its really hot the fan will run a few after I shut the car off which it never did before.
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Instructor
Joined: Nov 2011
Posts: 119
Likes: 34
Overheating
Well I got my C7 back from the shop on 7/22/15 (was in the shop since 7/6/15). They replaced the radiator coolant manifold/assembly. Im not blaming the service center at all, the have to wait on the GM Engineers to tell them what to fix and how to fix it. Anyways on 8/2/15 it overheated again and spewed antifreeze all over the garage. This is the third time in 2 months my C7 has been in the shop for overheating problems.
Starting to consider buyback from GM as I really do not trust this car anymore. Car is not driven hard at all, its my wifes DD and is always "babied" by her.
Starting to consider buyback from GM as I really do not trust this car anymore. Car is not driven hard at all, its my wifes DD and is always "babied" by her.
Burning Brakes
Joined: Apr 2015
Posts: 1,176
Likes: 128
From: DFW Texas
Little late to start the "Lemon Law" process but go ahead and provide the notification now and document the previous attempts with documentation such as the service ticket numbers.
Get it to the asap. Let that car be GM's problem...
Get it to the asap. Let that car be GM's problem...
Instructor
Joined: Nov 2011
Posts: 119
Likes: 34
Overheating
Sorry to hear of all your problems, nobody should have to go through what you are dealing with when you pay as much as we do for a C-7 - it should just be able to be driven and enjoyed - completely unacceptable by GM. Then American auto makers wonder why they cannot compete with foreign auto makers as far as reliability and retained value. Almost makes me want to cancel my 2016 order.
Drifting
Joined: Sep 2000
Posts: 1,633
Likes: 279
From: Dallas TX
Sorry to hear of all your problems, nobody should have to go through what you are dealing with when you pay as much as we do for a C-7 - it should just be able to be driven and enjoyed - completely unacceptable by GM. Then American auto makers wonder why they cannot compete with foreign auto makers as far as reliability and retained value. Almost makes me want to cancel my 2016 order.
Thread Starter
Intermediate
Joined: Oct 2014
Posts: 34
Likes: 6
I was contacted today by the Service Manager where my 2015 C7 has been 3x's since July 2015 for overheating. He told me he received a message from TAC about my C7 asking about possible "track use". I'm not sure what to make of this request from GM asking if my car was used at a track. I do know that I sent a message to GM Customer Service via this forum advising GM I was unhappy with this vehicle and no longer feel its a dependable safe vehicle. The following day the Svs Manager receives a msg from GM TAC about track use of the car.
I don't know if GM is trying to cover its bases or what. The car has never been on a track and is a DD for my wife. Makes me wonder what the "TRACK MODE" is for??? Ive now decided to utilize the BBB Auto Line to have GM buy my C7 back. GM is fully aware of this overheating problem and they don't know what to do to fix it. A service bulletin has been issued stating to replace the coolant manifold, which was done in July.
Ive had it with this car, its left a bad taste in my mouth. Not what I would expect in a $60,000+ car.
I don't know if GM is trying to cover its bases or what. The car has never been on a track and is a DD for my wife. Makes me wonder what the "TRACK MODE" is for??? Ive now decided to utilize the BBB Auto Line to have GM buy my C7 back. GM is fully aware of this overheating problem and they don't know what to do to fix it. A service bulletin has been issued stating to replace the coolant manifold, which was done in July.
Ive had it with this car, its left a bad taste in my mouth. Not what I would expect in a $60,000+ car.
Thread Starter
Intermediate
Joined: Oct 2014
Posts: 34
Likes: 6
Well tomorrow will make two weeks straight my 2015 C7 has been in the shop for overheating issues, 38 days and counting that it's been in the shop since June 26, 2015 . I don't trust this car anymore, ready to be done with it and move on. BBB Auto Line Claim has been initiated and filed. I hope GM does right by me and takes this car back.
Le Mans Master
Joined: Sep 2012
Posts: 7,146
Likes: 1,940
From: Hagerstown MD
St. Jude Donor '15-'16,'18
Well tomorrow will make two weeks straight my 2015 C7 has been in the shop for overheating issues, 38 days and counting that it's been in the shop since June 26, 2015 . I don't trust this car anymore, ready to be done with it and move on. BBB Auto Line Claim has been initiated and filed. I hope GM does right by me and takes this car back.
Drifting
Joined: Sep 2014
Posts: 1,267
Likes: 119
From: Bellevue WA
I was contacted today by the Service Manager where my 2015 C7 has been 3x's since July 2015 for overheating. He told me he received a message from TAC about my C7 asking about possible "track use". I'm not sure what to make of this request from GM asking if my car was used at a track. I do know that I sent a message to GM Customer Service via this forum advising GM I was unhappy with this vehicle and no longer feel its a dependable safe vehicle. The following day the Svs Manager receives a msg from GM TAC about track use of the car.
I don't know if GM is trying to cover its bases or what. The car has never been on a track and is a DD for my wife. Makes me wonder what the "TRACK MODE" is for??? Ive now decided to utilize the BBB Auto Line to have GM buy my C7 back. GM is fully aware of this overheating problem and they don't know what to do to fix it. A service bulletin has been issued stating to replace the coolant manifold, which was done in July.
Ive had it with this car, its left a bad taste in my mouth. Not what I would expect in a $60,000+ car.
I don't know if GM is trying to cover its bases or what. The car has never been on a track and is a DD for my wife. Makes me wonder what the "TRACK MODE" is for??? Ive now decided to utilize the BBB Auto Line to have GM buy my C7 back. GM is fully aware of this overheating problem and they don't know what to do to fix it. A service bulletin has been issued stating to replace the coolant manifold, which was done in July.
Ive had it with this car, its left a bad taste in my mouth. Not what I would expect in a $60,000+ car.
Drifting
Joined: May 2015
Posts: 1,412
Likes: 140
DUH! It even has a track mode! Has the dealer replaced /checked the water pump and thermostat and done an evaluation of the engine oil?
Melting Slicks
Joined: Dec 2005
Posts: 2,017
Likes: 169
From: SE VA VA
Assuming the fans are kicking on when they are supposed to....
Remember this is a bottom breather that also has a huge opening in the hood.
Look through the hood vent and check for accumulation of crud on the back side of the radiator. (Leaves and other stuff.)
Then check the intake/bottom side for plastic bags, more leaves etc.
Too much on either side and you don't get the airflow through to keep things cool.
Remember this is a bottom breather that also has a huge opening in the hood.
Look through the hood vent and check for accumulation of crud on the back side of the radiator. (Leaves and other stuff.)
Then check the intake/bottom side for plastic bags, more leaves etc.
Too much on either side and you don't get the airflow through to keep things cool.