6.2 mechanical lift pump ticking? - Diesel Place : Chevrolet and GMC Diesel Truck Forums
Home Forum Market Place Garage Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > 6.2L Diesel Engine
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Advertise

6.2L Diesel Engine Discuss the 6.2 GM diesel engine & associated components.

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Like Tree2Likes
  • 1 Post By Bigboytoys
  • 1 Post By legendman

LinkBack Thread Tools
Old 05-14-2019, 01:38 PM   #1 (permalink)
Diesel Student
Join Date: Dec 2018
Posts: 46
iTrader Score: 0 reviews

6.2 mechanical lift pump ticking?

Any thoughts or advice much appreciated! Now i have fixed all my air leaks i think, i have fuel leaks, better out than in i guess! Getting a hold on that, but now i am hearing or have now just noticed the sound of my mechanical lift pump running, making a ticking sound i guess? Just wondering if this is normal? Or am i headed towards more fixing? Thank you in advance! Much appreciated!

1991 gmc crewcab dually 6.2
Reply With Quote Quick reply to this message
Sponsored Links
Old 05-15-2019, 09:52 AM   #2 (permalink)
Diesel Champ
jnlperformance's Avatar
Join Date: Aug 2010
Location: Georgia
Posts: 1,971
iTrader Score: 0 reviews

Georgia Diesel Owners Club Member

Should post it on the 6.2 section. Most pumps on 6.5s are electrical.

I'd take a gander at no.... ticking sound is not good. But that's just an educated guess. I assume ticking sounds are bad until proven otherwise.

Bigboytoys in the 6.2 section should have a solid answer for you.

Offline   Reply With Quote Quick reply to this message
Old 05-15-2019, 10:40 AM   #3 (permalink)
OkDually's Avatar
Join Date: Jul 2013
Location: N.E. Oklahoma
Posts: 13,234
iTrader Score: 0 reviews

DieselPlace.com Lifetime Premium Member

Thread relocated over to "6.2L"

1996 K3500 6.5L,( "F" Eng #141 cast block) 5 speed manual, crewcab, dually longbed: 208,000mi.
Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover
AirDog II DF165 w/ tank sock delete - XDP
TD-Max boost controller - Kennedy Diesel
OPS extension hose - Leroy Diesel
Glow Plug Harness- PT Wiring Solutions
Glowshift Maxtow EGT,Boost, Fuel gauges
Boost & Fuel Pressure Bolts - Leroy Diesel
2/0 Battery Cable Upgrade - PT Wiring Solutions
PMD w/#9 resistor and Re-Location Kit, mounted to bumper - Leroy Diesel
GM-5 Turbocharger
4.10 gear ratio
OptiLube summer + Formula

Proud member #1039 of The 3500 Dually Club

Offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 05-15-2019, 01:04 PM   #4 (permalink)
Diesel Veteran
Bigboytoys's Avatar
Join Date: May 2007
Location: Manitoba, Canada
Posts: 5,891
iTrader Score: 1 reviews

Old School Oil Burners (Old SOBs) Member

Ya ticking usually isnít a great sign ... I think you just replaced that pump, wonding if they sold you a SBC pump and arm is too short sooo the pump rod is floating back and forth ticking asay & barely working the LP at the same time
90 Burb 1500 Silverado 4x4, 6.x in the shop, ATS Turbo on the bench . Open plenum intake. 700 R4 Now Rebuilt + 241, 10,000lb Trany Cooler With 10in pusher Fan and gauge. 8,000 LB Warn Multi Mount. TCC lock up control, 60 + 14b 4" Lift and 285 16's. ΜΟΛΩΝ ΛΑΒΕ
Originally Posted by happypunch View Post
it would be nice if it could deflect a deer or a prius...
Originally Posted by Livelli View Post
Mine ate about 6ft of paper towel once. It idled funny for a minute, then let out one big black firey fart and smoothed right out.
Originally Posted by ManyStepsKY View Post
My being able to set at the computer and type is evidence that my wife has not cut off both my arms and used them to beat me into a coma, so no, I did not buy it!
Post up pics of your carnage!!!! and timing ....Click Here
To bleed or find an air leak, simply, hereís a few different ways..
Offline   Reply With Quote Quick reply to this message
Old 05-17-2019, 11:59 AM   #5 (permalink)
Ex- 6BT Square Body Man
legendman's Avatar
Join Date: Aug 2008
Location: Oakdale, CT
Posts: 9,511
iTrader Score: 2 reviews

CT Smoke Member

Old School Oil Burners (Old SOBs) Member

Wondering if it's a gasser 350 lift pump also like BBT said.
Back in the day the auto parts stores had the same part # for a pump that fit the gas v8s and the 6.2.
Happened to me, wasn't getting proper fuel delivery and found I had a gasser pump, side by side you could see the difference in the arm that the rod pushes against.

Also the tunnel in the block might be worn and making a ticking noise as it moves around in there.
Originally Posted by Diaric View Post
What your saying happened, should never be able to happen.
Originally Posted by smackzed View Post
I put a chevrolet tailgate on my last truck and it started acting like a girl...love me, need me, want me pay attention to me. Took it off and put the GMC back on (fixed the latch) and it went back to being the same old dirty bastard it used to be
~ Bob

1999 Chevrolet K2500 5.7L Auto
2006 Jetta TDI 5sp
2002 Golf TDi 4dr 5sp (Broken, engine locked up)
2000 Golf TDi 2dr 5sp (Parts)

Do yourself a favor and read the 6.2 Diesel Student Training Manual ... lots of good info...it's in PDF format located here >> PDF Manuals

Last edited by legendman; 05-17-2019 at 12:04 PM.
Offline   Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
6.2 lift pump removal? Gmctroubleocco 6.2L Diesel Engine 8 04-10-2019 02:11 AM
1994 C3500hd 6.5 TD Lift pump issues. SQ is the SQUAD 6.5L Diesel Engine 9 10-02-2017 05:25 PM
92 GMC 6.2 Diesel lift pump won't work after injector pump replacement deercamp101 6.2L Diesel Engine 13 09-21-2016 08:02 AM
LBZ: Lift Pump & Filter Options with Nicktane Billet OEM location Adapter w/ Donaldson?? EL_Bee_Z07 Nicktane Filter Questions 4 02-05-2016 08:14 AM
Info: The 6.5L FAQ's... The Master List of Information and 6.5 Answers knkreb 6.5L Diesel Engine 16 07-15-2015 12:42 PM

All times are GMT -4. The time now is 06:36 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide