Lateral-g Forums - 5.3 LS fuel pressure drops/ hard cold starts!

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- - 5.3 LS fuel pressure drops/ hard cold starts! (https://www.lateral-g.net/forums/showthread.php?t=52039)

Efi69Cam

02-05-2016 07:27 PM

Quote:

Originally Posted by Sonar Chief (Post 629272)

Efrain ... I listen for the relay every time I start the truck, I don't turn the key until I hear the relay cut off ... it's always come on and clicked off!

I just thought of Auto Zone myself, I really need to leave it at the garage and let it sit overnight and then check the fuel pressure at the rail again.

Michael

I had one go bad, it would click, but had high resistance across the switched terminal. It's an easy check, swap it for another in the fuse box that's for a non crucial function.

Sonar Chief

02-05-2016 08:03 PM

Quote:

Originally Posted by Efi69Cam (Post 629274)

I had one go bad, it would click, but had high resistance across the switched terminal. It's an easy check, swap it for another in the fuse box that's for a non crucial function.

Thanks for the info ... I'll do that in the am and see what happens.

Sonar Chief

03-19-2016 12:15 PM

Just an update ... ordered a new relay (it's sitting in the glove box) filled the truck w premium gas and ran it on the highway to Denver and it's never acted up again .....hmmmm! :relax:

cjsgarage

04-12-2016 01:15 AM

Michael,
Those throttle bodies get gummied up a bit too. I clean them with a rag and a little solvent and it makes a huge difference. Be sure to shoot some solvent through the idle bypass hole.

Sonar Chief

04-15-2016 05:41 PM

Quote:

Originally Posted by cjsgarage (Post 635018)

Michael,
Those throttle bodies get gummied up a bit too. I clean them with a rag and a little solvent and it makes a huge difference. Be sure to shoot some solvent through the idle bypass hole.

I haven't touched it in quite some time, seems some good gas did the trick, she fires up like she always did ... no hesitation. I just made the trip out here to CA 1280 miles or so hauling the Camaro on a U-haul and she never missed a beat.

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