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: Loud noise when shifting to park Thankful 07-07-2007, 11:51 AM I usually have my window up so I've not noticed this before, but when going through a fast food drive through, I noticed a very loud noise (clunk) when shifting into park. It would do it about 6 or 7 times out of the ten times I did it. Dually has 3,800 miles on it so it's under warranty. Anyone know what it might be? f0cker 07-07-2007, 04:40 PM I've noticed the same thing with my '06 LLY, I would say it only happens 3-5 times out of ten. Maybe it's just Chattanooga trucks... I am in school at UGA now but I'm from Chattanooga. lakingslayer 07-07-2007, 08:19 PM If it only does it going into park and not into neutral then it's probably the parking pawl engaging. Thankful 07-07-2007, 08:53 PM If it only does it going into park and not into neutral then it's probably the parking pawl engaging. So, I assume, you think it's normal? DangerousDuramax 07-07-2007, 09:22 PM It's normal. Thats the park paw engaging. I've had 3 DMax's and they all did it from the day they were new. If your on an incline it is ususally more noticable. clay516 07-07-2007, 09:42 PM Mine does that too. BudTX 07-07-2007, 09:56 PM It's normal. Thats the park paw engaging. x2. The parking pawl on the Allison is huge, to hold your truck plus whatever you are towing. hawaiigmc 07-08-2007, 01:02 AM Yeah same here I just bought a new lmm 2500hd GMC, and it would do that as well, I have already brought it into the dealer they said it was a normal operation of characteristic. but at time it's very loud, this friday the truck will be going in again for the same concern. I can see that noise occuring when youre slightly moving forward and placing the shifter into park happening, but it also does it when im at a complete stop for about a minute then putting into park. kgt 07-08-2007, 02:51 AM Normal, when the allisons first came out in 01 every one who had one seemed to come in to my dealer concerned that their trans was falling apart...... lakingslayer 07-08-2007, 03:17 PM So, I assume, you think it's normal? The pawl is a big one and yes mine does it too. I think it's normal. godaddy 07-09-2007, 06:24 AM Mine does this too! Yes this is normal. I have found that if you put it in neutral first then in park no noise. XF350 07-09-2007, 10:36 AM It is normal. I read it in the owners manual. It is designed to hold 22,000 lbs while parked on a incline. I thought the trans. was locking up also. JRKRACE 07-09-2007, 11:35 AM I noticed it too. Sometimes I don't hear it because the doorlocks are popping open at the same time. | ||