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Old 07-01-2011, 06:33 AM   #1
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Default Grinding noise in engine on start-up!

I have been hearing a grinding noise in the engine on start-up after parking overnight and recently after only sitting parked for 2 to 2 and 1/2 hours. I heard it only once in a while initially (once a week or so) and for only a second or two. Now, it's everyday, more than once a day, lasts a few seconds longer, and occurs more often than just at the initial start-up of the day.

The dealership had it overnight and didn't hear it. They kept it for a few hours more, started it, and didn't hear it. What gives? Anyone else experiencing this issue? I've had one person correspond with me saying that I need to persist, take it back until the issue is resolved. He even sent me some technical info to pass on to the technician. He has been very helpful.
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Old 07-06-2011, 05:20 PM   #2
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Hey, any luck with figuring out the problem so far? I never heard of this problem with the Terrain but I did find a service bulletin that you will want to take a look at. Here it is:


#PIP4716A: Sharp Engine Rattle Noise At Start Up - (Feb 10, 2011)

Subject: Sharp Engine Rattle Noise At Start Up

Models: 2011 Buick Regal
2010-2011 Buick LaCrosse
2009-2010 Chevrolet Cobalt
2010-2011 Chevrolet Equinox
2009-2011 Chevrolet HHR
2009-2011 Chevrolet Malibu
2010-2011 GMC Terrain
2009-2010 Pontiac G5
2009-2010 Pontiac G6
2009-2010 Pontiac Solstice
2009-2010 Saturn Aura
2009-2010 Saturn Sky
2009-2010 Saturn Vue Equipped with the following engines
2009-2010 2.0L (RPO LNF)
2009-2011 2.2L (RPO LAP/LE8)
2009-2011 2.4L (RPO LE5/LE9/LAT/LAF)

--------------------------------------------------------------------------------
This PI was superseded to update models, years. Please discard PIP4716.
--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
In rare instances a technician may comment they hear a short, sharp rattle noise from the front of the engine on start up.

Recommendation/Instructions:
If the noise is from the front accessory drive area, inspect the engine belt. We have seen concerns with engine belts causing a loud ticking type noise. If found, verify power steering pulley outer edge is aligned flush with shaft and repair as needed. If pulley alignment is correct replace the engine belt.

If the noise is still present and is very short and sharp in duration (2-5 seconds). This may be an issue with the cam phasers not parking properly. Once the noise is verified as the phasers, they must be replaced. If the cam phasers are replaced, remove the CMP actuator solenoids to inspect for debris. If debris is found clean and inspect for torn or loose screens and replace if necessary.

Note: If debris is found in the solenoids and phasers change the oil and filter before returning to service, in some instances it may be necessary to change the oil/filter multiple times with a test drivein between each. The filter and solenoids can be inspected afterwards to ensure no additional debris is present.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


2011 General Motors. All rights reserved
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Old 07-19-2011, 02:59 PM   #3
dbe
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Default Same issue :(

I have the same issue as you. My Terrain is just about two weeks old so the noise was disturbing. It has occurred three times so far. I took it in today and of course it didn't happen for the tech. I am keeping a log of the days and times it happens. I love my Terrain but after driving my last car for 11 years, I can't afford problems with this new one.
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Old 08-07-2011, 01:38 PM   #4
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We were just told by our dealer that there is a recall for this issue. We are taking our 2011 in on Wednesday to get it fixed. I cannot find a listing for the recall anywhere, just the service bulletin. The dealer clearly said recall though and had a VIN number listing for the cars involved. We have about 3,600 miles and it is getting more frequent but only on cold start up. Sounds like no oil in the engine for the first 5-10 seconds. The mechanic in me says an engine will not stay together like this. I had a Chevy Colorado that did this that had an engine recall on it.
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Old 08-17-2011, 05:59 PM   #5
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Quote:
Originally Posted by hotflashjr View Post
We were just told by our dealer that there is a recall for this issue. We are taking our 2011 in on Wednesday to get it fixed. I cannot find a listing for the recall anywhere, just the service bulletin. The dealer clearly said recall though and had a VIN number listing for the cars involved. We have about 3,600 miles and it is getting more frequent but only on cold start up. Sounds like no oil in the engine for the first 5-10 seconds. The mechanic in me says an engine will not stay together like this. I had a Chevy Colorado that did this that had an engine recall on it.
I'm sure by now you had your car taken in for the recall and it's all probably sorted out by now.

Are you able to give us details on this GMC Terrain recall, it could help other Terrain owners on this forum.
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Old 08-18-2011, 09:32 PM   #6
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My 2011 4 cyl. Terrain is 3 months old and for the first 3500 miles I had no engine noise on start up, but then it started, first only when cold. I took it in to the dealer, first they couldn't find anything, then they found the bulletin to replace some parts and put some type of insulator on the engine so I wouldn't hear the noise. What a joke, looks to me like they are trying to mask a real problem. It's worse than ever and now I hear it on every start up, sounds just like a diesel engine. I have since talked to the Regional GMC Rep. and he is basically saying it's not broke and thats just the way the engine start up is. The dealership owner has called me and said he would make some follow up inquires but I'm not sure what can be done. I'll post again once I learn more, for now I am a very unhappy Terrain owner.
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Old 08-31-2011, 05:06 PM   #7
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Default Same Thing! Now Recall Issued!

I had that same rattling noise problem. Our Terrain has been in the shop twice with under 3500 miles. Both times they did work to the cam shaft. Yesterday I received a recall notice in the mail. They want to update a computer module and replace the camshaft actuator solenoid valves (I think that's what it was). We noticed once they worked on our Terrain, the gas mileage was instantly better and we've had no trouble since our repair. Hopefully you get a recall notice soon! Our's goes in next week to make sure all recall items have been fixed.
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Old 09-04-2011, 02:54 AM   #8
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I had a brand new 2011 terrain and has the same noise problem. It happens with 300 MILES ONLY!!!!!. I think made a mistake to get into GMC. I had a Saturn for 4 years and never visit the dealer. What a shame from GM to discontinue this line.
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Old 09-16-2011, 09:03 AM   #9
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Recall fix today
I took my Terrain in today and had the recall work performed. My initial impression.....it worked. However, I need to wait until tomorrow morning to hear it at start-up. Hopefully, no grinding sounds. The service adviser was very good at explaining the why's and what's of the service.
When I left the dealership and pulled into traffic I noticed an immediate improvement in pickup and smoothness. I then switched to "econ" and the results were good. Shortly after, I got on interstate and performance was still better than before.
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Old 09-20-2011, 04:23 PM   #10
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Quote:
Originally Posted by fredsterrain View Post
Join Date: May 2011
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Recall fix today
I took my Terrain in today and had the recall work performed. My initial impression.....it worked. However, I need to wait until tomorrow morning to hear it at start-up. Hopefully, no grinding sounds. The service adviser was very good at explaining the why's and what's of the service.
When I left the dealership and pulled into traffic I noticed an immediate improvement in pickup and smoothness. I then switched to "econ" and the results were good. Shortly after, I got on interstate and performance was still better than before.
that's good to hear, far better than hearing dealership horror stories lol.

how is it holding up till now? is it still performing as well as when you left the dealer?
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