2011 GMC Sierra 1500 4x4 Lifter noise

I have a what I believe is a lifter noise in the left side of engine. Always been there since new and now 7500 miles and getting louder. U can hear it at idle, cold or warm does not matter. I hear it better when you slow to a corner tick tick tick, and goes faster or slower with engine rpm.I get worried when in tow mode, when the engine shifts down to help whith braking and the rpms come up WOW its pretty loud. Kinda funny I hear it best slowing to a corner. But I can always hear the tick tick tick if its quiet around. Any advise? I am going to take it to dealer for 1st time this week and will place a bet they say its normal. I have purchased over 13 new GMC s in the last 25 yrs and 1 of them had a tick at start up but never all the time. Anysugestions will be appreciated. Thanks Dave
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I have a 2011 Sierra.
I know you said the tick is always there. Mine ticks and taps in the morning just after start up.
It also has a "vacuum" sound on the left side when the AFM is lagging as the truck struggles and growls when moving from 4 to 8 cylinders.
I'd let the Dealer know. Just don't be surprised when he says he can't hear it or he says it's "operating as designed."
Many of us new Sierra Silverado Escalade owners have heard that response. The Sale Managers and MX staff (especially the Sales Folks) aren't allowed to think for themselves. GM tells them what to say to make you disappear!
That appears to be GM's new montra.
Please keep us updated on your dealership visit, and we're available to assist in working with the dealership and following up with them if you are not satisfied.
Regards,
Sarah
GM Customer Service
your name/Edmunds username
phone and mailing address
last 8 digits of your VIN and current mileage
the name of your dealership and, if you can recall, the dates when you went in for this concern
My coworker Christina will assist you from there.
All the best,
Sarah
GM Customer Service
I suspect that if they continue to give other customers the "too busy" to help you line they won't be busy much longer.
My 2003 Silverado pickup truck has ben found to have a common and recurrent problem. Exhaust manifold bolts break, and on the driver side rear, they can be expensive to repair. A few miniutes of web searching on this topic produced a number of results and my conclusion is the issue is common.
The online complaints also indicate that the success rate for the repair is not good, with many repaired vehicles having subsequent bolt failures. My vehicle is in an authorized Chevy service garage having the bolts replaced. The original estimate was for $486, if cylinder head did not need to be removed. The service technician broke a tap off in the rear most bolt location. I don't know if it happened before head removal or after. It became necessary to remove the cylinder head and was requoted at $1600.
A call was made to GM 3-6-12. The response was that my truck was out of warranty and there fore they could be of no assistance in the mattrer. I am certainly aware of the warranty terms. My issue is with the scale of this engineering/manufacturing defect and the cost to the owners.
The online complaints also indicate that the success rate for the repair is not good, with many repaired vehicles having subsequent bolt failures. My vehicle is in an authorized Chevy service garage having the bolts replaced. The original estimate was for $486, if cylinder head did not need to be removed. The service technician broke a tap off in the rear most bolt location. I don't know if it happened before head removal or after. It became necessary to remove the cylinder head and was requoted at $1600.
A call was made to GM 3-6-12. The response was that my truck was out of warranty and there fore they could be of no assistance in the mattrer. I am certainly aware of the warranty terms. My issue is with the scale of this engineering/manufacturing defect and the cost to the owners.
If I can look into any open recalls ("Not to mention they had a recall on the thing"), I'd be happy to! Please email the last 8 of your VIN to socialmedia@gm.com and we'll look into that for you.
Best,
Sarah
GM Customer Service
Oil Pump Inlet tube O-Ring Replacement