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Grinding noise when driving Chevy Tahoe

16 messages,  Last post on Apr 04, 2009 at 9:22 AM

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What is this discussion about? Chevrolet Suburban, Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, SUV

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#7 of 16 More info by rs1807 Mar 12, 2007 (9:58 pm)
FULL-TIME 4WD   A second version of a 4WD transfer case is a full-time 4WD transfer case. This style of transfer case has an open center differential to allow for different speeds between the front and rear axles and operates similar to an AWD system. This transfer case can be locked to operate like a Part-Time 4WD transfer case (no difference between front and rear prop-shaft speeds) and/or uses a traction control system to assist in low traction situations. These transfer cases also have a selectable low range. An example of this type of 4WD is the H2. RPO code is NR4.
#8 of 16 2004 Chevy Tahoe Z71 by johnny4016 Mar 13, 2007 (6:19 pm)
I own a 04 Tahoe Z71. It has the push buttons on the left side of the steering wheel for AWD, 2 Wh, 4Hi, and 4Lo.   What yours has might be different than mine.   Most AWD vehicles mean that it is in 2 wheel drive when driving on normal dry pavement, when it feels a slippage it shifts the transfer case into AWD.   On my 2004 Tahoe I can shift from 2Hi to 4Hi while moving. But I have to be stopped and in nuetral to shift into 4Lo.   I hope that this helped?
#9 of 16 Re: grinding noise when driving '04 tahoe [andrew1968] by jmulford Jan 14, 2009 (6:38 pm)
Replying to: andrew1968 (Feb 14, 2007 12:33 pm) Andrew:   What was the solution? I have an 04 full time AWD and aloso experieice a grinding noise when under power, which also disappears when letting off the gas.   Suggestions?
#10 of 16 05 Tahoe 4wd transfer case replacement by bohicket1 Feb 05, 2009 (7:58 pm)
I have a 05 Tahoe Z71 w/ 70k miles. I just found out that the transfer case needs to be replaced. Is this Common or are their any recalls? I was told it will cost me $2100
#11 of 16 2004 Chevrolet Suburban Transmission Problems by alphacharlie1 Feb 09, 2009 (7:41 pm)
I have 48,000 on my '04 Suburban, today while driving it just all of a sudden made grinding/fluttering sound and then fell out of gear. The engine revs fine and there is no fluid leaking anywhere. I worked it through all the gears but it would not move forward. I had to have it towed. Any opinions on what might be the cause of this? Replies to this message: kiawah (Feb 10, 2009 10:25 am)
#12 of 16 Re: 2004 Chevrolet Suburban Transmission Problems [alphacharlie1] by kiawah Feb 10, 2009 (10:25 am)
Replying to: alphacharlie1 (Feb 09, 2009 7:41 pm) Replace the broken part in the transmission, most likely.
#13 of 16 Re: grinding noise when driving '04 tahoe [andrew1968] by raywi1 Feb 14, 2009 (10:53 am)
Replying to: andrew1968 (Feb 14, 2007 12:33 pm) I have a 04 burb and noticed a similar noise last night. I pulled the wheel feeling it was a defective break pad. I checked the pad it was ok but I noticed a lot of play with the rotor. I suspect a bad bearing. I am going to have it checked this week.
#14 of 16 2003 tahoe transmission failure by dave205 Apr 01, 2009 (6:09 pm)
i have a 2003 tahoe z71. 1st transmission failed at 6500 miles, 2nd gm rebuilt failed at 98,000 miles, purchased a new gm transmission with 3 yr 100,000 warrantiee(3rd transmission), that one failed at 5400 miles, 4th transmission just failed at 7,000 miles. is there any fix better than the new gm transmissions. Replies to this message: arrie (Apr 03, 2009 5:53 am) dave205 (Apr 04, 2009 9:22 am)
#15 of 16 Re: 2003 tahoe transmission failure [dave205] by arrie Apr 03, 2009 (5:53 am)
Replying to: dave205 (Apr 01, 2009 6:09 pm) After replacing transmission as many times as you have it does not sound like it really is a transmission problem.   It could be that when they bolt it on you have axial forces between transmission input shaft and torque converter, which then cause bearings fail in transmission, or something similar.   Car shops just keep replacing the transmission but the root cause probably is with bad fit / tolerance between the transmission and engine block / torque converter.   Also need to make sure the drive shaft from transmission to rear differential is not axially loaded.   Arrie Replies to this message: dave205 (Apr 04, 2009 9:22 am)
#16 of 16 Re: 2003 tahoe transmission failure [arrie] by dave205 Apr 04, 2009 (9:22 am)
Replying to: arrie (Apr 03, 2009 5:53 am) I actually had the tahoe at the dealer for two days and they can't replicate the problem(transmissions was slipping so much that I was not driveable when I dropped it off). they even dropped the pan to look for metal and wear(which is how they found my 2nd failed transmission---at my request). the 1st and 3rd transmissions just completely failed with no warning signs--both within 5 mins of driving after start up. one of the techs even drove it personally for two days. I have it back and it seems to be running fine---for now. I wonder if it is a computer issue--the service 4wd did come on for a few minutes when it was running really badly. I will let the dealer know on monday what you had suggested(thanks)

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