help! truck making a ticking sound. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Butler_20 · 10-13-2014, 10:44 PM

Hello my 72 chevy pickup is making a ticking sound while driving. The faster I go the faster the ticking sounds. When I'm parked I can barely hear it, even while I rev the motor. I think it's coming from my transmission which is a th350. Any suggestions would help, thanks.

**davischevy** · 10-13-2014, 11:44 PM

Check U joints in your drive shaft.

**Stocker** · 10-13-2014, 11:52 PM

Welcome to the board!

If it's ticking when parked, it won't be u-joints. I'll guess either a collapsed hydraulic lifter, or an exhaust leak at or near the manifold. Could be transmission, I don't know. Another possibility is cracked flex plate. They'll sometimes crack between the bolt holes.

IIGW · 10-14-2014, 12:36 AM

could even be a rock in the tire

**Stocker** · 10-14-2014, 01:02 AM

Quote:

Originally Posted by IIGW

could even be a rock in the tire

But not if he hears it when parked...

Butler_20 · 10-14-2014, 01:13 AM

Thanks guys, I'll definitely check and keep you posted!

70LonghornCST · 10-14-2014, 02:45 AM

I was also thinking valves, lifters, or exhaust leak.

engineer_gregh · 10-14-2014, 09:27 AM

Years ago I had a 350 that ticked. I poured in a bottle of Hyperlube and the tick went away. Its only about $12 bucks to find out. If it does fix the problem then you know its valve train related.

hamjet · 10-14-2014, 01:30 PM

Sounds like an exhaust leak. It sounds louder while driving because your working the engine. does it go away when you stop accelerating and coast???

BruthaMan · 10-14-2014, 02:04 PM

Reach up under the dash and make sure your speedo cable is tight. Do the same thing for the connection at the transmission. Optional - disconnect cable from speedometer, pull through firewall to engine bay, and add some lubrication.

How To Lube A Speedometer Cable - YouTube

Butler_20 · 04-02-2015, 10:38 PM

I believe it was an exhaust leak. When I unmounted the driver side exhaust from the header I found that the gasket was broken. I've since then, had hooker headers and flowmaster 44's installed. Gettin' her ready for summer. (*o*)/

Thanks guys, sorry about the lateness of this post. I've been busy with school and work.
Cheers!

10-13-2014, 10:44 PM	#1
Butler_20 Registered User Join Date: Oct 2014 Location: sheridan oregon Posts: 3	help! truck making a ticking sound. Hello my 72 chevy pickup is making a ticking sound while driving. The faster I go the faster the ticking sounds. When I'm parked I can barely hear it, even while I rev the motor. I think it's coming from my transmission which is a th350. Any suggestions would help, thanks.

10-13-2014, 11:44 PM	#2
davischevy Senior Member Join Date: Sep 2008 Location: Harrison, Arkansas Posts: 9,836	Re: help! truck making a ticking sound. Check U joints in your drive shaft. __________________ other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless.

10-13-2014, 11:52 PM	#3
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,695	Re: help! truck making a ticking sound. Welcome to the board! If it's ticking when parked, it won't be u-joints. I'll guess either a collapsed hydraulic lifter, or an exhaust leak at or near the manifold. Could be transmission, I don't know. Another possibility is cracked flex plate. They'll sometimes crack between the bolt holes. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

10-14-2014, 12:36 AM	#4
IIGW Registered User Join Date: Jul 2014 Location: phx az Posts: 342	Re: help! truck making a ticking sound. could even be a rock in the tire __________________ tubbed 1984 gmc jmmy http://67-72chevytrucks.com/vboard/s...d.php?t=639738 Alice Hombre http://67-72chevytrucks.com/vboard/s...d.php?t=808454 1963 Scout Retro-mod https://67-72chevytrucks.com/vboard/...d.php?t=854167

10-14-2014, 01:13 AM	#6
Butler_20 Registered User Join Date: Oct 2014 Location: sheridan oregon Posts: 3	Re: help! truck making a ticking sound. Thanks guys, I'll definitely check and keep you posted!

10-14-2014, 02:45 AM	#7
70LonghornCST Moderator Join Date: Jun 2008 Location: Modesto, CA Posts: 5,775	Re: help! truck making a ticking sound. I was also thinking valves, lifters, or exhaust leak. __________________ 2018 Chevy Crew Cab 2006 Impala SS 1965 Plymouth Sport Fury 1970 Chevy Longhorn Bucket Seats Shoulder Belts Front Tow Hooks Factory Air Factory Speedwarning, Tach & Vaccum Factory Tilt CST Package AM/FM Radio Bumper Guards Richard 70 Longhorn CST Build Adding an AM/FM Decal

10-14-2014, 09:27 AM	#8
engineer_gregh Registered User Join Date: Feb 2012 Location: Smyrna TN Posts: 1,153	Re: help! truck making a ticking sound. Years ago I had a 350 that ticked. I poured in a bottle of Hyperlube and the tick went away. Its only about $12 bucks to find out. If it does fix the problem then you know its valve train related. __________________ 1971 Longbed BB Cheyenne Super 1972 Longbed SB Cheyenne Super 1972 Longbed Highlander Custom Deluxe 1975 K5 4x4 full convertible Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=645165 Greg Smyrna TN

10-14-2014, 01:30 PM	#9
hamjet Registered User Join Date: Apr 2013 Location: South Westerlo, New York Posts: 1,325	Re: help! truck making a ticking sound. Sounds like an exhaust leak. It sounds louder while driving because your working the engine. does it go away when you stop accelerating and coast??? __________________ Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.

04-02-2015, 10:38 PM	#11
Butler_20 Registered User Join Date: Oct 2014 Location: sheridan oregon Posts: 3	Re: help! truck making a ticking sound. I believe it was an exhaust leak. When I unmounted the driver side exhaust from the header I found that the gasket was broken. I've since then, had hooker headers and flowmaster 44's installed. Gettin' her ready for summer. (o)/ Thanks guys, sorry about the lateness of this post. I've been busy with school and work. Cheers!



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