FUEL PUMP TESTING?
#2
The absolute proper way is to measure how much fuel it pumps per unit of time but few do it that way.
Here is some guidelines.
1. check the fuel pressure on the injector rails for a PSI of about 40 +/- a few.
2. Check how much pressure is pumped at key on position but no start.
3. Check the pressure bleed down rate after the motor is stopped.
These checks will provide a good indication of the health of the whole system.
Good luck.
Here is some guidelines.
1. check the fuel pressure on the injector rails for a PSI of about 40 +/- a few.
2. Check how much pressure is pumped at key on position but no start.
3. Check the pressure bleed down rate after the motor is stopped.
These checks will provide a good indication of the health of the whole system.
Good luck.
#4
Thread
Thread Starter
Forum
Replies
Last Post
wedwebel
1987 - 1996 F150 & Larger F-Series Trucks
6
04-09-2008 07:40 PM