Odd issue.. - Page 4 - 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 Tree11Likes

Reply
 
LinkBack Thread Tools
Old 03-08-2016, 12:20 AM   #31 (permalink)
Towers91
Clutch
 
Join Date: Feb 2016
Posts: 63
iTrader Score: 0 reviews

I didnt actually notice if there wasa filter and seeing how the bottom looked, but i pulled the new filter out and it looked as good as new, but oddly enough i waited about an hour and a bit and bumped the key and itnfired and idled. Prior to that it idled for around 3 mins and died, and just cranked and cranked. Odd, i guess i should check condition of the FFM and clean it out and replace the 2nd filter in there.

Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-08-2016, 12:26 AM   #32 (permalink)
OkDually
Administrator
 
OkDually's Avatar
 
Join Date: Jul 2013
Location: N.E. Oklahoma
Posts: 13,608
iTrader Score: 0 reviews

DieselPlace.com Lifetime Premium Member

Quote:
Originally Posted by Towers91 View Post
I didnt actually notice if there wasa filter and seeing how the bottom looked, but i pulled the new filter out and it looked as good as new, but oddly enough i waited about an hour and a bit and bumped the key and itnfired and idled. Prior to that it idled for around 3 mins and died, and just cranked and cranked. Odd, i guess i should check condition of the FFM and clean it out and replace the 2nd filter in there.
In case you replace that screen here is the part #

Stanadyne: 29244

__________________
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

Online   Reply With Quote Quick reply to this message
Old 03-08-2016, 02:18 AM   #33 (permalink)
HeavyChevy95
Diesel Veteran
 
HeavyChevy95's Avatar
 
Join Date: Jun 2008
Posts: 5,266
iTrader Score: 0 reviews

I suspect your OPS is defective, leaving the lift pump inoperative if not intermittent. Or the liftpump is struggling, restricted or not receiving full voltage..
I know, its a '99 models but you wouldnt be the first to suffer from an inop liftpump during engine operation on OBD2 models..
I think the redundancy power thing is misunderstanding myself but I have no way to verify my suspicions first hand..


Installing a Vacuum Restriction Indicator pre-liftpump will help monitor the strainers health but wont help locate those pesky 'zippers'..

"A leak on suction (inlet) side will reduce the volume of fuel on the pressure side of the pump and suck in air."



IIRC, any more than 5" (equiv to aprox 2.5 psi) is considered excessive restriction. Currently, my recently restored system has barely registered (recorded) any measurable vacuum (pre-lift pump resistance)..
Any more that a 2psi pressure loss across the FFM element indicates excessive restriction, read due for replacement...




FWIW

Avoiding Air Intake
An important function of all hoses, lines and fittings is to carry fuel with maximum absence of air.

When the fuel tank cap is in place and the injection pump and fuel pump are drawing fuel through the lines a low vacuum of 0-1 lb. mercury is created. This occurs because the fuel which the engine uses must be replaced by air.

During this vacuum condition, the slightest leak, which may not leak fuel externally, could draw air into the system and depending on the volume of air, a wide variety of engine malfunctions are possible. These may show up as M.P.G. complaints, smoke complaints, performance complaints and hard starting or not starting conditions.

For example, suppose the inlet fitting was slightly loose at the engine fuel filter. This would probably have an external leak and be a complaint of fuel leak or smell of diesel fuel accompanied by a ď starts but then dies and canít re-startĒ complaint. It is possible that when the engine is shut down the fuel could syphon out of the lines and fuel pump and back into the tank. It is then replaced by air which entered at the loose fitting. The fuel system is now empty and as a result the engine must be cranked until the lines are full again.

Continued reading on page 116
source
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-08-2016, 08:10 AM   #34 (permalink)
Towers91
Clutch
 
Join Date: Feb 2016
Posts: 63
iTrader Score: 0 reviews

I guess checking the fuel purge would be a good place to start for fuel in the line, check the pressure at the ffm after it dies, if notta is there then bleed the system and try to fire, if thats the case, then air in the line, check the left over line that isnt replaced. Im going to order that stanadyne filter tonight after work. Im reg the truck tonight, just would love it if it didnt leave me stranded again.
Offline   Reply With Quote Quick reply to this message
Old 03-08-2016, 10:21 AM   #35 (permalink)
mjd
Glow Plug
 
Join Date: Apr 2008
Posts: 268
iTrader Score: 0 reviews

Start with the simple and free things first
Did you open the t valve ? If yes what did it do ,if no start there
Blow the snot sock out ,take the fuel line off and take fuel tank cap off and blow air through the line
Check for fuel leaks

Last edited by mjd; 03-08-2016 at 10:24 AM.
Offline   Reply With Quote Quick reply to this message
Old 03-08-2016, 11:39 PM   #36 (permalink)
94C1500
Diesel Specialist
 
94C1500's Avatar
 
Join Date: Mar 2009
Posts: 3,231
iTrader Score: 1 reviews

When the engine dies, does the Service Engine Soon light stay lit with the ignition in the ON position?
__________________
1994 C1500 - 4L80E & 3.42 rear; Custom Multi-Program Chip; L65 intake; "FTB", Walbro FRC-10 lift pump, pre-LP fuel filter & OPS relay mod; D-Tech FSD on heatsink; Big Turbo, 4" to 5" exhaust exits before axle, Cone air filter; "marine" injectors. Propane fumigation and WMI.
ENGINE DESIGN CALCULATORS
LIST OF RECOMMENDED MNX & MODS
HX40 or HX35 V-Band Exhaust Elbows
Offline   Reply With Quote Quick reply to this message
Old 03-08-2016, 11:51 PM   #37 (permalink)
grabowski
Whistle Pigs Are Cool
 
grabowski's Avatar
 
Join Date: Apr 2005
Location: The Syncro Ranch
Posts: 2,445
iTrader Score: 2 reviews

Old School Oil Burners (Old SOBs) Member

The Suburban Club Member

Quote:
Originally Posted by HeavyChevy95 View Post
I suspect your OPS is defective, leaving the lift pump inoperative if not intermittent. Or the liftpump is struggling, restricted or not receiving full voltage..
This is what I was thinking as well.
__________________
The highest recommendations are in Bold below
________
1985 GMC 6.2 manual 4x4 3/4+ton 64,013 miles (5-1-19)
______________
The Blowby Queen '94 Chevy 'burb Silverado K2500 4L80E 4.10. Quadstar Tuning.
Midland Diesel Las Vegas Diesel rebuilt 5221 Blue Label IP with ULSD Upgrade & rebuilt Bosch injectors @ 2200psi. 235-85 on 16" PYO alloys. Bilstein HDs, Hellwig rear sway bar. Heath TM. Fluidampr. S&B oiled filter Intake, Provent 200 W/catchcan. Bosch Duraterm GP W/PT Solutions GP harness. WJ FTB. AC Delco Tstat & Red Line Water Wetter. hxtasy PMD #2 resistor on Heath Isolator 4. LS 1/2" oil cooler & lines. OPS Relay Mod & Leroys Hose. Diamond Eye exhaust. Heath 2.5" crossover. W/T Grille. VDO EGT & Vac/Boost gauge with copper line & Leroys Boost Bolt.


- 12-13-16 Out Of Commission @ 194,680k, 50 miles after Teds Mil Takeout Install. Bad noises in the motor.
- 12-29-16 #7 lifters and pushrods replaced and still sounds like a metal trash can half full of hammers rolling down a scree field.
- 03-01-17 @ 194,802 miles she's no longer mine.

12-28-2016: I no longer recommend Badger/kr_services and Ted's Trucks
Offline   Reply With Quote Quick reply to this message
Old 03-08-2016, 11:53 PM   #38 (permalink)
Towers91
Clutch
 
Join Date: Feb 2016
Posts: 63
iTrader Score: 0 reviews

Unsure, ill still be looking into it, but it was registered today, fired up and put 90km on it no issue
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
OnStar issue Desert DMAX Electrical 0 02-05-2016 12:31 PM
Question: 6.2 Weird Issue hawks 6.2L Diesel Engine 27 01-16-2016 09:26 AM
Slight issue after issue on1wheel01 6.5L Diesel Engine 36 12-31-2015 10:10 AM
LLY: Issue with ABS Diesel Wanna Be Drivetrain - 2001 - 2010 7 09-25-2015 12:00 PM


All times are GMT -4. The time now is 02:53 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