Clicking tranny - The 1947 - Present Chevrolet & GMC Truck Message Board Network

skokie · 12-24-2003, 01:43 AM

When backing up I am hearing a clicking noise coming from the tranny. Tranny is a 400 turbo. Anyone know what it could be?

Thanks

casey · 12-24-2003, 03:32 AM

I'd check your u-joints.

skokie · 12-24-2003, 04:32 AM

What am I looking for?

krue · 12-24-2003, 04:42 AM

Slackness. There shouldn't be much if any play in the driveline with the tranny in park.

tom hand · 12-24-2003, 09:26 AM

Hard to tell without hearing it but I would check the shift linkage....if it is not adjusted correctly it could be the parking pawl...the thing that locks the trans when you put it in park. I have heard them make noise when the shift linkage is not adusted correctly....and it will only do it in reverse

skokie · 12-24-2003, 01:11 PM

I will check the u joints. In Jan the truck is going to the tranny shop for a checkup so I will ask them to check the parking pawl then.

Thanks Merry Christmas

**old Rusty C10** · 12-24-2003, 01:23 PM

also check to see if you have the two piece driveshaft that may have something in it or a bad bearing any chance something could be wrapped aound the driveshaft either?

12-24-2003, 01:43 AM	#1
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,335	Clicking tranny When backing up I am hearing a clicking noise coming from the tranny. Tranny is a 400 turbo. Anyone know what it could be? Thanks

12-24-2003, 04:42 AM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Slackness. There shouldn't be much if any play in the driveline with the tranny in park. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

12-24-2003, 09:26 AM	#5
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	Hard to tell without hearing it but I would check the shift linkage....if it is not adjusted correctly it could be the parking pawl...the thing that locks the trans when you put it in park. I have heard them make noise when the shift linkage is not adusted correctly....and it will only do it in reverse __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

12-24-2003, 01:23 PM	#7
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,299	also check to see if you have the two piece driveshaft that may have something in it or a bad bearing any chance something could be wrapped aound the driveshaft either? __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

12-24-2003, 03:32 AM	#2
casey Registered User Join Date: Jan 2003 Location: Kelowna B.C. Canada Posts: 2,048	I'd check your u-joints.

12-24-2003, 04:32 AM	#3
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,335	What am I looking for?

12-24-2003, 01:11 PM	#6
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,335	I will check the u joints. In Jan the truck is going to the tranny shop for a checkup so I will ask them to check the parking pawl then. Thanks Merry Christmas



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