2015 Tahoe is hard to start when engine is cold

yogi11 · November 23, 2014

I was wondering if anyone else is having this problem. When I start the Tahoe after sitting overnight the engine cranks for about 7 to 10 seconds before it starts. After the engine is warm it start within a second or two. Is there a problem with the fuel system?

8.1HD/ALLISON · November 23, 2014

Possibly. Try turning the key to the run position but dont crank. Wait a few seconds to let fuel pump run and reprime system. Do this a couple times and then crank. If it starts better im guessing you have a fuel system thats loosing prime. Shouldnt have to crank that long. Either way take it in, that what warranty is for.

yogi11 · November 23, 2014

This Tahoe has a push button start and I did talk to my dealer and they said it is normal for this engine to crank a while before it starts. I don't think it should take this long to start and I get the feeling its going to leave me stranded some day because it won't start.

blackout07 · November 23, 2014

We don't have that issue, but the coldest it's been in SE TX is mid to high 30s.

MikeNH · November 23, 2014

This Tahoe has a push button start and I did talk to my dealer and they said it is normal for this engine to crank a while before it starts. I don't think it should take this long to start and I get the feeling its going to leave me stranded some day because it won't start.

You can still leave it in the run position by not putting your foot on the brake and pushing the button twice I think. That could show if the low pressure pump is leaking down anyhow. The HPFP is engine driven though, not sure how to test that.

The Zip · November 23, 2014

yogi11 - I started a thread "....Engine Cranking But No Start", in which GM addressed this by issuing Service Bulletin 367758. This may not be your issue but check it out. Also, you may have found out if our OEM batteries have enough Cold Cranking Amps (CCAs). Car batteries need enough CCAs to turn over larger engines when the temps dip pretty low, as the temps warm it's easier for a battery with insufficient CCAs to crank the vehicle.

Do the research and find out what are the battery CCAs for this vehicle and compare it to the OEM battery CCA installed in our trucks. I have been driving the Tahoe for 15 years and in both previous versions I had to install a bigger battery, CCAs were way off the mark. If you confirm this and the dealer doesn't do anything about, a top of the line battery with correct CCAs will cost you around 125 bucks.

GMCustomerService · November 23, 2014

This Tahoe has a push button start and I did talk to my dealer and they said it is normal for this engine to crank a while before it starts. I don't think it should take this long to start and I get the feeling its going to leave me stranded some day because it won't start.

Hello yogi11,

I'm sorry to hear of the concerns you have with your Tahoe. I understand that you are unsatisfied with your dealerships diagnosis, that this is normal. We'd be glad to document your concerns and discuss this further with you. Also, if you're interested in visiting a different dealership for a second opinion, we're happy to assist. We're just a PM away, if our help is needed!

Andraya

GM Customer Care

yogi11 · November 26, 2014

I just wanted to give an update to my problem. Over the past weekend I got an alarm on my dash showing the service engine alarm. I toke it to another dealer in my area and they tell me that the "camshaft position actuator solenoid valve" is the problem with it stating hard and also getting the engine alarm. They tell me that they won't have the part until next week and that it is a full day's job to put it in. I'm not very happy with them having to tear into the engine to replace this part. I didn't expect this kind of problem with only 1085 miles on this vehicle. Needless to say I'm not very happy with this vehicle.

newdude · November 26, 2014

I just wanted to give an update to my problem. Over the past weekend I got an alarm on my dash showing the service engine alarm. I toke it to another dealer in my area and they tell me that the "camshaft position actuator solenoid valve" is the problem with it stating hard and also getting the engine alarm. They tell me that they won't have the part until next week and that it is a full day's job to put it in. I'm not very happy with them having to tear into the engine to replace this part. I didn't expect this kind of problem with only 1085 miles on this vehicle. Needless to say I'm not very happy with this vehicle.

There is very little effort in changing that part. They don't even have to pull the engine fan belt, nothing. Its right on the front of the engine. Don't get your hopes down on your truck! Plenty of warranty, GM has been VERY vigilant in watching for issues on these new engines.

310racing · November 26, 2014

Are you running Dino oil or corn juice? E85?

GMCustomerService · November 26, 2014

Hello yogi11,

We understand that you are unhappy with the repairs that need to be completed on your new truck. I recognize how disheartening this must be for you. As I mentioned, we'd be glad to further document this concern in our system. Feel free to send us a PM here on the site.

Andraya
GM Customer Care

Anon2015 · November 26, 2014

Hello yogi11,

We understand that you are unhappy with the repairs that need to be completed on your new truck. I recognize how disheartening this must be for you. As I mentioned, we'd be glad to further document this concern in our system. Feel free to send us a PM here on the site.

Andraya

GM Customer Care

Documenting the concern will do what to assist Yogi11?

310racing · November 27, 2014

Unleaded or E-85?

E-85 takes significantly longer to crank when cold in these trucks/motors.

yogi11 · November 27, 2014

I use shell unleaded gas in this vehicle. Newdude post that it is very easy to change this part, but the dealer tells me that they have to pull the oil pan and the front cover of the engine to get at this part.