2009 suburban clunk on acceleration

30.11.2020 By Dujar

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2009 suburban clunk on acceleration

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2009 suburban clunk on acceleration

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It may not display this or other websites correctly. You should upgrade or use an alternative browser. Thread starter denaliguy Start date Aug 11, I've searched in a lot of forums trying to find an answer for my scenario. While coasting typically above 40mphif I accelerate hard there is a very noticeable thump then the car accelerates as normal.

The harder I accelerate the harder the thump. If I'm easy on the gas pedal is doesn't happen, or if it does it's much softer. I've got a Escalade with no known issues. The thump does not occur at stops or shifting. Only when I accelerate hard after I'm already moving down the road. My initial guess is that it's something with the driveshaft.

I read about the slip yoke issue but everyone reports the thump or bump when they come to a stop or accelerate from a stop. Mine does not do that. Could that still be the issue? I have some high friction, high temp valvoline joint grease that I used on my Envoy when that had the slip yoke issue. I'll give that a try, but like I said the symptoms are not the same. Any suggestions are welcome.Forums New posts. What's new New posts New media New media comments Latest activity.

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It may not display this or other websites correctly. You should upgrade or use an alternative browser. Thread starter yankeejeeper02 Start date Oct 10, Joined Apr 29, Location Raleigh. I have been chasing a metal sounding clunk after letting off the gas from a hard acceleration, and also when shifting from drive to reverse. Its def not the u-joints!

I found this online and wonder if this could be the cause, also how would I check to see if it is the cause? As they wear, the end play between the axle and spider gear increases. Mine increased to the point of actually causing the brake shoes to split down the center lengthwise, and warped the drivers side drum.

Everything can be changed with the carrier in the truck. The clutches increased from three to four per side. Traction is greatly improved, and the noise is gone. What vehicle do you have? I don't really see how this would split brake shoes, especially considering the shoes are stationary. The reason is much like a hammer. If you hold it 6" off the nail, you can get enough impact to drive it in.

The same is true with driveline lash.Do you. Have it scanned for codes to see what'swrong with thesystem. Was this answer. You need a pro type scanner not an auto parts it won't read it Was this answer. Hi I bought a pro scanner and scanned all systems in the car but no codes found? I got into suspension module and read data. Found that speed signal is very high like I'm driving km it will show around km? What should I do? Should I replace suspension module?

If you have a pro scanner you should be able to pull a code I don't think you do I think you got one from an auto parts store which arent' the same. Check these sensors in front for being bent or a rod broken then see if you can pull a code and you have to know if it has Z95 option or not. Which should be on glove box door. See pic you will have one of these on each wheel area.

Image Click to enlarge. I have rpo z55 not z95 and I'm using launch x scan tool I can read live data from suspension module. Iv checked all sensors of suspension all good. Then check bushing for a front end problem like in control arm bushings or worn ball joints etc. If the system is functioning abnormally, performing the ALC Trimset recalibration procedure may correct the condition.

When a system component has been replaced, ALC Trimset calibration must be performed.

The GM Driveline Clunk (Pickup)

Once the process has been completed, the system should be fully functional. Please login or register to post a reply.

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Asked by silverbuzz nycap. Asked by Saeed. Sponsored links. Ask a Car Question. It's Free!Gain extra benefits by becoming a Supporting Member Click here find out how! Send Private Topic View Profile.

Please see Bulletin C for details. Do not use the new grease for lubrication of slip yoke splines on 4WD vehicles. The output shaft in a 4WD transfer case does not have a grease retainer to keep the grease from migrating into the transfer case and mixing with the fluid inside.

The new grease is not compatible with the Automatic Transmission fluid used in the transfer case and can cause damage if mixed. Please refer to Bulletin B for repairing the bump feel or clunk noise condition on 4WD vehicles. Execution time: 0. All times are GMT Pacific. Current time is AM Top. Attach Photos to Posts.

Contact Us. My Cookies. Frequently Asked Questions. Forum Rules. It happens if I take my foot off the gas and coast a little but when I step back on the gas I get this big clunk sound like there is a bunch of play in my driveline that needs to be taken up before I can accelerate again.

I replaced the universal joints about three years ago. From a stop?

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Allan Lifelong GM automatic transmission specialist. Not a lot of gas either, just enough to pick up speed again. Mine also sometimes hesitates from a stop on acceleration, almost as if something isn't engaging.

2009 suburban clunk on acceleration

Also supposed to be attributed to the slip yoke. It needs to be greased. You could take it out and pack it with grease every few thousand miles or: Easy fix for this? Get a grease fitting or two, if you want the shaft to be symmetricaltake the driveshaft out and drill a hole or two, opposite each other in the slip yoke, ensuring you don't go too far up the shaft and can't put the shaft back into the transmission.

That way you can just grease the slip yoke whenever you need to. I haven't actually done this yet, as I just haven't had time to do it, but I plan on doing it when I change the wheel hub assembly. Do a bit more research on it to make sure I didn't leave anything out though! Don't hold me accountable! It sounds like there is a nickel plated slip yoke that will solve this problem so I'll have to look into that.

Not sure how a nickel plated slip yoke solves the problem but we'll see.Gain extra benefits by becoming a Supporting Member Click here find out how! Send Private Topic View Profile. Execution time: 0. All times are GMT Pacific. Current time is AM Top. Attach Photos to Posts. Contact Us. My Cookies. Frequently Asked Questions. Forum Rules. It's not u-joints, as they've been replaced.

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What do you think? Leaf spring bushings, slip joint, or limited slip diff? It's not bad, I don't really feel it, just hear it. It's been doing it since I bought it 50, miles ago. Now hason it. Do you hear it as well when coming to a stop? Read my post, "Driveshaft Slip yoke woes". Greasing it usually helps. They said they replaced mine with a new design with a different material used to make the slip yoke.

Worked great for about six months, then it came back. This time they just greased it. It did not help at all, and actually seems a bit worse. You can do it yourself, but I understand it needs a special grease. Not sure about the grease. Anyone else know?? True dual gibson extreme mufflers X-pipe, bushwacker fender flares BF goody all terrain's. Greasing a couple times a year isn't a big deal until winter I'm in Alaska, with no garage. Really it seems that nobody but me notices the noise except a friend who drives a Ford.

How does a tranny in 37, miles sound? Warranty was 36k Since I haven't had any troubles with this truck that left me stranded I'll continue to just take note of how bad the clunk is.

So far it hasn't changed in over 50k so it's probably not going to have any longevity effects. It was driving me crazy. I thought it was the transmission or U-Joint. I took it to the transmission shop and they informed me this "takeoff noise" was a common problems of trucks in general.

The fix was to sepearate the front side of the leaf springs and clean them up sand, dirt, etc and greased them. It isn't the diff of u joints then I was told GM had problems with rear calipers and my caliper may be locked up.At his request, I emailed Bell a list of questions about the the issues raised in this story.

I hope they get it. My participation will be limited to providing the following key facts: Pregame consistently stresses how hard it is to beat the bookie. We spend hundreds of hours a week producing content to help improve those difficult odds. Every pick ever sold by any active seller is graded and archived online, allowing customers to make fully informed decisions.

He claimed that I would be reporting factual errors but refused to tell me what they were.

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I told Bell that if he could provide factual information that disproves my reporting, I was happy to hear it. I told Bell that a fair and accurate story would benefit from him answering individual questions on the record. The next day, he published his second statement on the Pregame forum.

Thump Bump Clunk When Accelerating While Coasting

Twelve domain names included gambling terms, like ncaabasketballodds. In hindsight, the NCAA and the administrative panel may have missed a seemingly major connection. No public record I could find showed Giancola ever living anywhere but Ohio.

Her listed address in Shadyside, a small coal-mining town close to the West Virginia border, is the same three-bedroom house near the Ohio River in which Bell grew up. But the gambling domains were hers to keep. The gap between appearance and reality is something Bell (real name: Randall James Busack) understood long before he started running a pick-selling operation.

Fundamentally, the touts at Pregame are marketable personae crafted by Bell. It says so in their contracts. The most important of those claims is that these handicappers actually win. Everything rests on this assertionit even says so on the checkout page after you buy a pick.

Pro is short for professional. If you make money selling picks for Pregame, you are quite literally a Pregame Pro. He routinely advertises winning streaks from 54 to 73 percent. He picked the total score over 201. It not only lostdespite overtime, the game ended at 188. Click Up The Orange button and play right along side the Oster. Why would sports betting picks be held to a higher standard than mutual funds.

And on the Vanguard website, as WagerMinds pointed out, it takes all of 30 seconds to find complete and customizable long-term performance data for any of their funds, over any length of time. Wheatley-Schaller, 28, is one half of the pair who cracked the code to the Pregame database. Last June, he was looking through older picks on Pregame when he noticed that the entire grading system had changed. The same goes for bets placed on the first half of a game.

Thump Bump Clunk When Accelerating While Coasting

The tout has to load a full-game play and then specify in the write-up that it is not for the whole game. If these are incorrectly graded as wins, the tout has to ask tech support to manually re-grade the play.

I found plenty of examples where touts never amended winners to losers, or they did so only after pressure from Contrarianville. On October 10, 2015, for instance, Fezzik sold a first-half college football bet on Miami, a four-point underdog. Miami covered the full-game spread, however, so the Pregame system incorrectly auto-graded the first-half play as a win.Everything from the initial pick up at the airport, through to hire car, hotel bookings, literally everything ran smoothly without any problems whatsoever.

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