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Posted on Jan 02, 2017
SOURCE: My Nissan Pickup is losing power
If you take the vehicle to a local shop, you can get a mechanic to do a compression check on each one of your cyllinders. This will tell you if your engine is holding pressure. If that checks out, it would have to be a fuel problem, (injectors, pump, filter, or clogged line) or maybe spend the couple bucks, and buy yourself a new MAF (mass airflow sensor) it may be the problem, but if not, it always helps to change.
Posted on Jan 30, 2009
EXACT PROCEDURE ! Please Rate Me Fairly for this!! Thank you And Good Luck !!
REMOVAL and INSTALLATION
NOTE: To ease pump installation, rotate the camshaft so the camshaft eccentric is out of the way of the fuel pump rocker arm.
Posted on Mar 22, 2009
before you drop tank again, check fuses & relay.then disconnect fuel line @ filter turn key to on position should hear fuel pump run and get gas stream out of line. if no flow from line new pump faulty be sure & remove negative battery cable first good luck.
Posted on Jun 20, 2009
Make sure there is no vacuum leaks.
Vacuum leak at intake manifold and vacuum hose.
Bad Idle Air Control Motor (IAC)
Low compression (170 psi + is OK)
Start cleaning and repair these trouble spots and see is there any improvement.
For more advance DIY'er then you may try this.
Use a can of Berryman carburetor clean to locate the vacuum leak.
SEE SAMPLE PICTURE HERE
This is a 20-30 minutes job.
Vacuum leaks can occur in following locations.
Intake manifold AND/OR vacuum lines.
Intake manifold is not accessible unless the engine head if off.
You can still check the potential leak by spraying some Berryman near the intake manifold.
Listen for rpm increase after you introduce the Berryman (FUEL) at idle.
Do the same starting from the brake booster unit (the round unit) on the drive side fire all.
Carefully listen for increase of RPM right after to spray the Berryman to the potential vacuum spot.
Get a friend to HEAR the RPM increase or monitor for RPM on the tech.
DO NOT AIM the Berryman into any heat source.
PLEASE RATE my answer if it is useful to you.
Posted on Dec 17, 2009
The best way to help find the problem, is to have a fuel pressure test done on it, that will tell if the fuel pump is weak, or the fuel pressure regulator is malfunctioning. If the pressure is low, the fuel pump is weak,
if it is high, the fuel regulator is at fault.
Posted on Apr 10, 2010
Testimonial: "Great Advice, found problem, now new problem, but very helpful"
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