2018 Tahoe rst 6.2 engine noise..gurgle?

[Labird]

I have a 2018 6.2L Tahoe premier with the RST package, but not the double exhaust, that makes a gurgling (closest word I can relate noise to) noise when I accelerate. It has about 4,000 miles. It’s not constant and it’s not the normal rumble of the motor. Anyone else?

 

[dbbd1]

Does it sound like it is exhaust related? Could be your flapper valve in the exhaust, after the muffler. Check out the "bolt mod."

 

[Labird]

Does it sound like it is exhaust related? Could be your flapper valve in the exhaust, after the muffler. Check out the "bolt mod."

It seems to be coming more from the drivers side right about under the pedals.

 

[SnowDrifter]

How's your coolant level? And before you say it's a new car, I know. Most new vehicles need a coolant top off as the remainder of the air bleeds out from the factory fill

If you place the vehicle in neutral and rev the engine, does it do it?

 

[GTNator]

Have you compared it to another 2015+ 6.2 under similar conditions i.e. cold/warm engine?

 

[Labird]

How's your coolant level? And before you say it's a new car, I know. Most new vehicles need a coolant top off as the remainder of the air bleeds out from the factory fill

If you place the vehicle in neutral and rev the engine, does it do it?

I will check the level. Thanks!

 

[Labird]

Have you compared it to another 2015+ 6.2 under similar conditions i.e. cold/warm engine?

Funny you should ask, a friend just got the new 2019 6.2 suburban and I am going to check with him. Thanks!

 

[Jorge1313]

I have a 2018 6.2L Tahoe premier with the RST package, but not the double exhaust, that makes a gurgling (closest word I can relate noise to) noise when I accelerate. It has about 4,000 miles. It’s not constant and it’s not the normal rumble of the motor. Anyone else?

I have the same Tahoe as you I only here that coming out of exhaust when you start it up how many mpgs are you getting has you mpgs improved since the da.y you bought it

 

[zcarczar]

I have 2 6.2's, one in an Escalade and one in a Tahoe. Both make similar noises with the engine running, sounds similar to a cammed V-8 with headers.

 

[GTNator]

I have 2 6.2's, one in an Escalade and one in a Tahoe. Both make similar noises with the engine running, sounds similar to a cammed V-8 with headers.

Are they completely stock? What about the exhaust, is that the standard factory ones?


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[zcarczar]

My wife's Escalade is stock with 20k miles, my Tahoe has a cat back magnaflow exhaust with 7k miles. Both have made the noise from day 1, other 6.2's I've been around make the same noise as well. Just one of the quirks you get from a high performance V-8.

 

[Labird]

My wife's Escalade is stock with 20k miles, my Tahoe has a cat back magnaflow exhaust with 7k miles. Both have made the noise from day 1, other 6.2's I've been around make the same noise as well. Just one of the quirks you get from a high performance V-8.

That’s what my husband keeps telling me too. It’s a big engine that I’m not used to. Thanks for the reply!

 

[Labird]

I have the same Tahoe as you I only here that coming out of exhaust when you start it up how many mpgs are you getting has you mpgs improved since the da.y you bought it

I’ll double check, thx

 

[Labird]

Are they completely stock? What about the exhaust, is that the standard factory ones?


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Yes all stock