24 Valve Engine and Drivetrain Discuss the 24 Valve engine and drivetrain here. No non-drivetrain discussions please. NO HIGH PERFORMANCE DISCUSSION!

Hard Start Cold

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Old Aug 15, 2011 | 06:09 PM
  #1  
banzaitoyota's Avatar
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From: Aiken SC
Thumbs down Hard Start Cold

New Blue Chip VP-44
New Mopar ECM with Mopar flash
New Raptor 150 with line kit
Glacier Big Line kit
New Fuel Filter
ISSPRO Fuel Pressure with Ashcorft ss snubber (Mounted on the canister)

No Codes (With Reader)
Fuel Pressure 18 PSI Idle, 16-17 WOT

In the morning, it takes 45 seconds to over a minute of cranking to fire; once it does (with ALOT of smoke) it immediately settles down to a smooth consistent idle. The longer the truck sits, the longer it takes to crank.I have the clear 3/8" line hooked to it now with zero signs of air leakage. It still exhibits the symptoms above

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Old Aug 20, 2011 | 11:27 AM
  #2  
KATOOM's Avatar
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Joined: Jan 2003
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From: The "real" Northern CA
You're looking for a leak in the supply line and the problem lies in the return side. Park the nose of the truck downhill overnight and I'm betting the truck will start fine. One of the fittings in the return line is leaking and since its low pressure, air is entering more than any fuel is escaping. The single banjo bolt on the back of the head, the "T" fittings just below that, cracked or rusted through fuel lines, and cracked injector o-rings are the most common culprits. The o-rings aren't usually a problem unless you've changed injectors recently without changing the o-rings. If you cant find any leak then try baby powder to help locate the spot.
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