Help me please wit my disco1
Help me please wit my disco1
When I start the truck, it already has a high idle, then it usually drops some after awhile, but know it's acting like it cant get gas when I push on the gas pedal, it pulse's... And when I let up off the gas it idles fine, but when I push back down on the gas it act like it wanna cut off help please
If I keep my foot on the gas, it will pulse ( the rpm needle a go up and down ) and some times it will stall. But when I take my foot off the gas it will idle normal, and it's usually cold, but it does it warm too
Last edited by Optimistic.1; Jul 30, 2011 at 12:31 AM.
Super Moderator
Joined: Jan 2011
Posts: 16,322
Likes: 88
From: Savannah Georgia
There is a schrader valve on the fuel injector rail, where you can attach a fuel pressure tester (rent/borrow from auto parts store). This would help show you if fuel pump, fuel pressure regulator, or fuel filter might be involved. I believe the RAVE shows a value of 34 - 36 psi. You have enough fuel for idle, but it drops off when needed. Another suspect area is air input, easy to check/clean/replace air filter, inspect mass air flow sensor, clean with something that is made for that exact purpose and rated for use with catalytic converters. This may sound like a shotgun approach, but usually if one thing is off in these areas, other closely related items have also suffered from lack of maintenace by a previous owner, etc.
Winching
Joined: Apr 2011
Posts: 553
Likes: 8
From: Oklahoma; where the winds come rolling down the plains.
Sounds alot like the fuel pressure regulator. Results of a bad pressure regulator will result in engine flooding. Check the vacume line that attaches to the fuel pressure regulator. It is common for the vacume line to develop a dry-rot gap or two. You can find the fuel pressure regulator on top of the engine and towards the back on the drivers side. The vacume tube is only a few inches long and will connect to the intake manifold.
