Is this a problem?
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 32
Likes: 0
From: Dandridge TN
Is this a problem?
My 99 starts up fine when i drive it daily, but if I dont drive it for a couple of days it wont fire up the first time. It always cranks the 2nd time though. If i drive everyday this doesnt happen.. I have some timing taken out of it due to the 125 shot. I also have a haltec intake, port n polished throttle body, and ls1 edit. I do have my exhaust cut off right in front of my mufflers. Is there not enough back pressure or what . thanks for anyones input...
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 32
Likes: 0
From: Dandridge TN
Originally Posted by muncie21
Sounds kinda like a fuel pressure issue, but it could be alot of things.
Melting Slicks
Joined: Aug 2003
Posts: 3,306
Likes: 5
Originally Posted by cdaddyc5
My 99 starts up fine when i drive it daily, but if I dont drive it for a couple of days it wont fire up the first time. It always cranks the 2nd time though. If i drive everyday this doesnt happen.. I have some timing taken out of it due to the 125 shot. I also have a haltec intake, port n polished throttle body, and ls1 edit. I do have my exhaust cut off right in front of my mufflers. Is there not enough back pressure or what . thanks for anyones input...
Melting Slicks
Joined: Dec 2002
Posts: 2,480
Likes: 62
From: Middletown DE
I have been annoyed with this a few times, and i dont think the pump is powered while cranking, so unless you have the pressure at the rails to start it, it wont start -
do you let the pump prime the system (just turn the key to the on position for 5-10 seconds before beginning to crank) or do you just turn the key and start cranking.
I think alot of our cars will see fuel pressure loss in the lines with the car off when left for a few days, you may need to prime it twice, it should start on the first crank.
do you let the pump prime the system (just turn the key to the on position for 5-10 seconds before beginning to crank) or do you just turn the key and start cranking.
I think alot of our cars will see fuel pressure loss in the lines with the car off when left for a few days, you may need to prime it twice, it should start on the first crank.
Last edited by SmoothFRC; Sep 7, 2006 at 04:02 PM.
Burning Brakes
Joined: Jan 2003
Posts: 833
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From: Midtown Motors Indiana
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Originally Posted by SmoothFRC
do you let the pump prime the system (just turn the key to the on position for 5-10 seconds before beginning to crank) or do you just turn the key and start cranking.
I think alot of our cars will see fuel pressure loss in the lines with the car off when left for a few days, you may need to prime it twice, it should start on the first crank.
I think alot of our cars will see fuel pressure loss in the lines with the car off when left for a few days, you may need to prime it twice, it should start on the first crank.
I just cycle the key twice and varooooom.
Letting the pump prime is the key
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 32
Likes: 0
From: Dandridge TN
It sounds like you guys are right, because last time i crank it up after it sat a couple of days i turned the key on and let the guages come back down before cranking it , it didnt fire right off but it did crank the first time. Just glad to hear my car isnt the only one doing this. thanks a bunch. 
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