2002 ford 3 liter troubles

Mikej · March 29, 2007, 05:40:47 PM

I have a 2002 3 liter ford ranger. It will run ok until 3000 rpm. Acts almost like it is governed. Starts hunting, no power. Doesn't die, always starts. Fuel pressure 70 psi. New filter. Any ideas. Thanks Mike

Dave · March 29, 2007, 06:56:57 PM

Quote from: "Mikej"I have a 2002 3 liter ford ranger. It will run ok until 3000 rpm. Acts almost like it is governed. Starts hunting, no power. Doesn't die, always starts. Fuel pressure 70 psi. New filter. Any ideas. Thanks Mike

Ya one.. converter is plugged ?
Dave

Mikej · March 30, 2007, 01:32:24 PM

It does it in park also. I thought a drive line problem too. Its my partners truck. He took it to the local garage. I tried to get him to take it to a ford dealer.

tomslik · March 30, 2007, 01:58:31 PM

Quote from: "Mikej"It does it in park also. I thought a drive line problem too. Its my partners truck. He took it to the local garage. I tried to get him to take it to a ford dealer.

yeah, they've got more parts to throw at 'em than the independents

you say it runs good until 3K?
driving or just sitting there revving?
i AM asking these questions for a reason...

Mikej · March 30, 2007, 03:18:13 PM

Least they can put them back on the shelf.

stude55 · March 30, 2007, 09:30:27 PM

sounds like a fuel issue, or I should say fuel strategy issue, take off the maf sensor and clean it with carb or brake clean and then spray it with low pressure compressed air to dry, clean the resistor portion, have also seen cat converters plug, as suggested above, use a vacuum gauge or diconnect them from the manifolds(if easy), otherwise find a good ford tech, or lesser tech who knows eec5(obdII) Re post when you find out what fixed it, I am currious.

Mikej · March 31, 2007, 08:32:41 PM

It does this in park just reving the engine or when driving. 3000 rpm. Will ask local mechanic about Maf sensor. Think he checked it already. He talked with some tech people and thought it might just be plugs and wires. Of course no one had any. My partner was going try and find some this weekend and change them. Will know more Monday. I'm lost on these new car and trucks. Can't even see the plugs.

Cat convertor :oops: I will mention this Monday if the plugs don't do it.
Thanks guys.....

Mikej · April 02, 2007, 10:13:26 AM

Heres the poop; the hunting at 3000 rpm in park is the rev limiter!!!!! The bad miss at 3000 rpm, while driving, turns out to have been a small miss instead. I was lead to believe it was the same hunting as the rev limiter. I I'm not to happy about this. 2 days in the shop for nothing. I should have driven it. My fault.

Dave · April 02, 2007, 01:56:22 PM

Well at least you know now.. My kid has one of them things and he just put a timing belt on it and it needs a water pump. 150.00 :?: He also changed all 8 plugs and did the wires too. He is still waiting for the pump then he can get it all back together..
Dave

stude55 · April 03, 2007, 10:09:57 PM

LIVE AND LEARN. 3000 RPM REV LIMITER GETS A-LLLLLLLLLOT OF PEOPLE. WHAT ARE YOU TRYIN TO DO, SET UP YOUR CONVERTOR FOR A GOOD LAUNCH ON THE LIGHT?

Mikej · April 05, 2007, 12:25:00 PM

That was my first thought also.

I have no idea why he was reving to 3000 rpm in park.