Slight issue after issue - 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 > 6.5L Diesel Engine
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Advertise

6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Like Tree7Likes

Reply
 
LinkBack Thread Tools
Old 12-01-2015, 02:41 PM   #1 (permalink)
on1wheel01
Diesel Rookie
 
Join Date: Nov 2015
Posts: 37
iTrader Score: 0 reviews

Slight issue after issue

Okay guys maybe you can help me out again. Recently installed 2 new pmds and have them on heatsink behind bumper now it isint grounded it's just placed behind grill not sure if that matters. Also did fuel cap mod as I was sold a gas model one so took the plunger out. It's a 95 c2500, it runs good until it warms up then it sputters coughs and dies. It takes about 4 miles to start acting up. I have tested the fuel pump by starting it and cranking open the t it has good flow for over a minute. I put in a new fuel filter yesterday to maybe help out but nope. Now when I Crack the bleeder I do have some air bubbles so maybe a leak somewhere? Any and all help is appreciated as I'm at a loss. Been tryong to research but I just get lost in it all. Having to borrow a friends spare suv to get to work and pick my kids up from school good thing for great friends right.

Offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-01-2015, 04:24 PM   #2 (permalink)
Freddyack
Lead Moderator
Diesel Guru
 
Freddyack's Avatar
Quote:
Originally Posted by on1wheel01 View Post
Okay guys maybe you can help me out again. Recently installed 2 new pmds and have them on heatsink behind bumper now it isint grounded it's just placed behind grill not sure if that matters.
Are the heat sinks bolted to something or just hanging loose?

Quote:
Originally Posted by on1wheel01 View Post
Also did fuel cap mod as I was sold a gas model one so took the plunger out.
When it stops running, have you opened the fuel cap and did you get a loud/heavy whoosh sound?

Quote:
Originally Posted by on1wheel01 View Post
It's a 95 c2500, it runs good until it warms up then it sputters coughs and dies. It takes about 4 miles to start acting up.
How long after the engine stops can you get it started again?

Quote:
Originally Posted by on1wheel01 View Post
I put in a new fuel filter yesterday to maybe help out but nope. Now when I Crack the bleeder I do have some air bubbles so maybe a leak somewhere?
Do you get the air bubbles from the new fuel filter bleeder?

Check for cracks in the rubber fuel lines around the Fuel Filter Manager

Make sure the fuel filter is fully seated on the Fuel Filter Manager.

__________________
Offline   Reply With Quote Quick reply to this message
Old 12-01-2015, 05:26 PM   #3 (permalink)
on1wheel01
Diesel Rookie
 
Join Date: Nov 2015
Posts: 37
iTrader Score: 0 reviews

Quote:
Originally Posted by Freddyack View Post
Are the heat sinks bolted to something or just hanging loose?

Heatsink is hanging loose



When it stops running, have you opened the fuel cap and did you get a loud/heavy whoosh sound?

Fuel cap no whoosh took the plunger out of it so won't have vac it does spill out fuel when full tank but I just deal with that


How long after the engine stops can you get it started again?
It really all depends. Usually I cycle the key a few times not sure if it helps. But a few cranks and it will usually fire.

Do you get the air bubbles from the new fuel filter bleeder?
Yes bubbles from new filter just as the old did

Check for cracks in the rubber fuel lines around the Fuel Filter Manager
I shall do this tomorrow on my day off

Make sure the fuel filter is fully seated on the Fuel Filter Manager.
Yes it is funny seated I made sure of that I noticed it has only one way to go with the one large groove and other smaller ones

And thank you for your reply much appreciated
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-01-2015, 05:39 PM   #4 (permalink)
Glagulator
Diesel Superstar
 
Join Date: May 2005
Location: Very south TEXAS, Formerly Wisconsin
Posts: 3,667
iTrader Score: 5 reviews

Do you notice any dash lights or other electrical stuff shut off when it dies?
If you start it and let it idle, how long till it dies?
__________________
There are 10 kinds of people in this world; Those who understand binary and those who don't.

99 CREW LONG SRW C3500 work truck 199k+ mi. orig. motor & trans 4.10, modded engine harness, new oil cooler & lines, all new front end parts and poly bushings, trans poly mount, all new brakes.
96 SUBURBAN K2500 wife's truck 210k+ mi. orig. motor & trans, 3.73...
95 C2500 Suburban 6.5td HO w/p, timing set, HB & pulley, all rubber hoses, modded engine & main harness, converted to OBD2, PMD to bumper...
95 C1500 Suburban 6.5td rebuild tranny, convert to DB2, replacing as many parts as I can.
96 C2500 Suburban 7.4L converting to 6.5td w/ DB2, 4L80, 3.73
Offline   Reply With Quote Quick reply to this message
Old 12-01-2015, 05:43 PM   #5 (permalink)
on1wheel01
Diesel Rookie
 
Join Date: Nov 2015
Posts: 37
iTrader Score: 0 reviews

I have taken notice of what lights are or arnt on. I shall next time I drive it which will be tomorrow . And at idle not sure I can test that tomorrow also
Offline   Reply With Quote Quick reply to this message
Old 12-01-2015, 05:49 PM   #6 (permalink)
Diaric
R.I.P. Sam
 
Diaric's Avatar
 
Join Date: Jan 2008
Location: Bentley , Alberta
Posts: 32,091
iTrader Score: 2 reviews

Old School Oil Burners (Old SOBs) Member

Alberta Coal Rollers Member

DieselPlace.com Lifetime Premium Member

If you think there are air issues, read this thread for searching them out. A cheap piece of clear hose on the IP return can let you confirm.
Your stalling is probably something else though. My first though is a pinched return line, like Freddy was alluding too.

https://www.dieselplace.com/forum/63-...leak-6-2l.html
__________________
1987 6.2l Jimmy , being restored,4" lift, 35 mudders 1993 W350 5.9 , custom stretched cab, duelly flatdeck
2001 VW TDI Jetta 4 door loaded 2001 VW TDI Golf 2 door swapped engine project
Quote:
Originally Posted by 4320diesel View Post
well to make your pump retarded, you could let it hang out with me for a day
Quote:
Originally Posted by Hawkstrong View Post
Diaric wins thread derailment......
Quote:
Originally Posted by High Sierra 2500 View Post
Yeah Diaric, I gotta say, I'm afraid I'm going to have to give you an official warning on that.
6.2 FAQ's AND ANSWERS Click Here
My Restoration Thread Click Here
Alberta Coal Roller Member #2

Last edited by Diaric; 12-01-2015 at 05:50 PM.
Offline   Reply With Quote Quick reply to this message
Old 12-01-2015, 07:42 PM   #7 (permalink)
JMJNet
Diesel Legend
 
JMJNet's Avatar
 
Join Date: Feb 2006
Location: Richardson, TX
Posts: 17,238
iTrader Score: 0 reviews

The Suburban Club Member

Which brand of 2 new PMDs did you buy?

Also, which brand of extension cable?
__________________
1995 GMC Suburban:
PMD in Bumper
Leroy Diesel Flight System PMD
Leroy Diesel Oil Cooler Line
4" Warpspeed Exhaust
Kennedy Diesel LP/OPS Harness
Bosch Duraterm GP
Heath Turbo-Master
AD244 Alternator

Last edited by JMJNet; 12-01-2015 at 07:42 PM.
Offline   Reply With Quote Quick reply to this message
Old 12-01-2015, 07:49 PM   #8 (permalink)
94 at Large
Glow Plug
 
94 at Large's Avatar
 
Join Date: Aug 2005
Location: Nashville, NC
Posts: 294
iTrader Score: 0 reviews

Something to consider but when you changed the fuel filter did you make sure that the bowl was completely cleaned out? I had similar issues and I had replaced pmd, lift pump and filter to no avail. Got a turkey baster and sucked out the bottom and came up with a black gunk that took a bit of rinsing to get clean. I think it was algae as my truck sits a bit between runs. I now run with an algaecide and have had no more issues.
__________________
94 K2500 6.5TD "S", 3.73, Banks 3", Soot Trap/Tank Sock Delete, Hayden Transmission Cooler, B&M Gauges, Ram Air, Remote Mount PMD, OPS Bypass and Billet Crankshaft Pulley (Leroy Diesel), Fluidampr, Lubrication Specialist Oil Lines, Carter Lift Pump w/Pre Filter, Relocated Dual Oil Filters, RDS 91 Gallon Auxiliary Fuel Tank
Offline   Reply With Quote Quick reply to this message
Old 12-13-2015, 02:23 PM   #9 (permalink)
on1wheel01
Diesel Rookie
 
Join Date: Nov 2015
Posts: 37
iTrader Score: 0 reviews

Okay guys after its been sitting for a bit. I decided to take her on a drive and see how she did. For about 8 minutes or so or casual driving and beating on her some it started to studder. Got it home cranked open the t valve and no fuel and it shut right off. So ordering a lift pump and seeing if that does it. It was only 29 bucks from rockauto so figures why not. I will update when it arrives
Offline   Reply With Quote Quick reply to this message
Old 12-13-2015, 02:59 PM   #10 (permalink)
crankme69
Diesel Pro
 
crankme69's Avatar
 
Join Date: Oct 2009
Posts: 2,445
iTrader Score: 0 reviews

That very well may be the oil pressure switch that is bad...ya need to read through the sticky section before you open your wallet next time

__________________
1995 1500 Silverado 6.5TD 2WD Ext Cab 246K, FSD cooler bumper mount, Buddy 3 pos chip, DE 4" exhaust, K47 with F intake

1995 Tahoe 6.5TD 217K Buddy chipped cat & muff delete

1994 1500 Silverado 6.5TD 2WD RCLB 208K Buddy chip F intake, daily work commuter 21mpg avg

2005 FLHTC 107 Twin Cam Tman 625 cams, 10.1 CR, Mik 45, DTT map, 3.37 final, E1 clutch & VPC with SE 6 sp, SnS roller rockers Bub 7 2 into 1 exhaust, 120Tq & 120Hp

1995 FXD 80 EVO V Thunder 2015 cam, Mikuni 42, SE slip ons, 80Tq & 70Hp
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

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

Log-in


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
Strange LBZ glow plug issue RockHopper Duramax Third Generation: 2006-2007.5 (LBZ & LLY) 9 12-15-2015 05:13 PM
LBZ: High idle switch issue 12VRattler Duramax Third Generation: 2006-2007.5 (LBZ & LLY) 1 11-22-2015 11:38 AM
Defrost issue rfr002 HVAC 0 10-15-2015 11:26 AM
LLY: Issue with ABS Diesel Wanna Be Drivetrain - 2001 - 2010 7 09-25-2015 12:00 PM
Allison Trans Issue - P0746 dc2188 Allison OEM 1 09-08-2015 08:04 PM


All times are GMT -4. The time now is 04:39 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