Fuel Pump Operation
Thread Starter
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
Fuel Pump Operation
Question, im stumped....
Fuel pumps come on, No Fuel pumping.
Reversed Polarity, No fuel Pumping....
THey are running in both scenarios, but no fuel comes out....
Pumps worked fine when removed in fall...
Ideas?
Fuel pumps come on, No Fuel pumping.
Reversed Polarity, No fuel Pumping....
THey are running in both scenarios, but no fuel comes out....
Pumps worked fine when removed in fall...
Ideas?
Pro
Joined: Jan 2002
Posts: 741
Likes: 9
From: Rancho Cordova CA
I wonder if something is stuck shut up stream like the check valve or the regulator. If you open up the line towards the rear, maybe around the filter and then turn them on for just a second do they work?
Thread Starter
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
Nevermind, im brain dead....
Pumps were air bound badly for some reason and the 2 sec prime that the car does when you turn the ignition was not enough to get them loaded.
When I commanded them on with HP tuners they primed....
Pumps were air bound badly for some reason and the 2 sec prime that the car does when you turn the ignition was not enough to get them loaded.
When I commanded them on with HP tuners they primed....
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
I thought perhaps the fitting inside the tank had come loose and it was just pumping inside the tank and able to deliver in the fuelk line!
Welcome good old AIR-LOCK
Thanks,Matt
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
Its always the simplest things that stump you.. We are soo used to looking for the needle in the haystack, that we never look for the obvious..HAHA.
Thread Starter
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
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Drifting
Joined: Sep 2004
Posts: 1,464
Likes: 7
Tech lesson 101 the "KISS" method has been around for years.
“Keep It Simple Stupid”.
Always look for the simple things first, and it looks like he did just that. In less than 1 ½ hours he had it figured out.
Does that still work in todays world?
