Tonylmiller

My daughter drives a 2014 Chevy Spark with 42,000 miles. It is out of the bumper to bumper warranty.

A week ago Friday, the CVT started acting crazy, shifting all over the place and the check engine light came on.

I called them on Saturday and they said to wait until Monday to bring it in. Fine.

I had the car towed to the dealer on Monday a week ago today and they gave me a loaner car on Wednesday.

I didn't hear a thing until today. They called and told me the coolant overflow tank was cracked and that was causing all of this. I told them to fix it. Not covered by warranty.

I drove the car last weekend first thing in the morning (stone cold) and the transmission was acting up.

I think all of this smells fishy. I asked for the cracked coolant tank after they replace it. The overflow tank was not empty when I took it in. I had checked it.

I am going to ask them to drive it and make sure it is fixed before I come and get it. I don't want to have to take it right back.

What are your thoughts?

Chevy Guy

I think you already know the answer to this one.

wcsinx

And people wonder why I do all my own repairs.

The ONLY way I could potentially see a cracked coolant tank causing the problems you describe would be if it were dumping coolant on an engine or transmission control module and shorting out some circuitry. And if that truly is the case then they ******* well better be replacing that module(s) too.

mchar

The first words out of my mouth?

NO, hell no.

C5 Hardtop

Was the coolant fluid low when you checked it?

Tonylmiller

Yes. I don't really doubt that it was cracked, but I cannot understand how it could cause a transmission problem and a CEL.

C5 Hardtop

Good question. It is plausible the fluid leaked onto a connection. I'd get the code and look it up. My car has a CVT and I wouldn't know what to do if it was shifting weird since it doesn't really shift. Are you guessing its a trans problem based on engine RPM noise or is there more to it? Maybe the engine is having a problem and the transmission is impacted by that.

Tonylmiller

The rpm's were fluctuating wildly. Like you couldn't take off because it was in a high "gear", then the rpm's would just go up and down.

Tonylmiller

Well, I was driving their courtesy car and hit a deer on my way into work this morning! The car is damaged to the tune of $2,000 to $3,000 I would guess. Glad I wasn't driving my Corvette!

alamike

Nissan CVTs have failed due to coolant finding its way into the transmission fluid after a radiator tank failure.
http://www.nissanproblems.com/trends...-transmission/

Are these the same clowns that took over Landshark Chevrolet on University?