truck wont start when weather gets hot - Chevy and GMC Duramax Diesel Forum

06-07 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

 
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post #1 of 4 (permalink) Old 04-24-2012, 11:17 PM Thread Starter
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truck wont start when weather gets hot

Guys,

I have ran into a problem that when the temperature starts reaching 90 degrees + or when the truck sits in direct sun It sometimes it wont start.

Fix: i pump on the part that the fuel filter it attached to (sorry dont know what its called) until it gets hard to push on and the truck starts !

What do you all think is causing this ?

2006 LBZ CC/SB SLT GMC in Blue Graphite Metallic
8" FabTech lift | Amp Research Power Steps
18x10" Raceline Renegade 8 Wheels
35x12.50R18 Nitto Trail Grapplers
Super Chip Flashpaq Programmer
S&B Cold Air Intake Kit
4" turbo back Strait Pipe with 6inch tip (Home Fabbed)
Fox Shox All the Way around
Firestone Airbags in the rear
30" Bulldog Bone Edition LED Light Bar
AND ALOT OF GOODIES IN THE INTERIOR !
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post #2 of 4 (permalink) Old 04-26-2012, 10:46 PM Thread Starter
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no one ?

2006 LBZ CC/SB SLT GMC in Blue Graphite Metallic
8" FabTech lift | Amp Research Power Steps
18x10" Raceline Renegade 8 Wheels
35x12.50R18 Nitto Trail Grapplers
Super Chip Flashpaq Programmer
S&B Cold Air Intake Kit
4" turbo back Strait Pipe with 6inch tip (Home Fabbed)
Fox Shox All the Way around
Firestone Airbags in the rear
30" Bulldog Bone Edition LED Light Bar
AND ALOT OF GOODIES IN THE INTERIOR !
por2gzo is offline  
post #3 of 4 (permalink) Old 04-28-2012, 08:07 PM
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your filter head is pulling a vacume thru a oring causing air in the system, get a rebuilt kit from nicktane and or put a lift pump on the truck

2006 LBZ ,gmax 6, AD2, DP and 4 inch,, nicktane,reroute,hid,gauges, ATP tuning, airbags,onboard compressor, superglide, PPE box
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post #4 of 4 (permalink) Old 04-28-2012, 08:19 PM
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Yup like stated above your truck Is losing Its prime on the fuel system.
Get a rebuild kit and a new filter and have at it

Black 2006 GMC LBZ SLT3 CCSB | 9" TCS lift on 20x10 BMF Novakane Stealths with 35" Nittos | PPE Diff cover | PPE Deep Trans pan | FloPro 5" straight pipe + Pypes 8" tip | Suncoast stage 4 Trans | EFI Live w/ DSP5 | Airdog II 165 | AFE Intake | AFE Turbo Inlet | AFE Hotside Boost Tube | Cognito UCA's | Rare parts tierods | Straight center link and SS Idler support | ARB Rear / Eaton E locker Front + 4.10's F/R | Trac Bars |

4/7/2012: 496whp / 1042wtq

SDP Twin S475 and Exergy 45% Injectors on the way!
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