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[Andy's1989ranger]

Hey all, new around here, I recently picked up a 1989 ranger with a 2.9L, and am starting to regret it lol. It bucks really bad around 2k to 4k rpm. It's not very consistent, and almost never happens below or above those rpms. I've replaced the fuel injectors, fuel pressure regulator, fuel filter, plugs, wires, cap and rotor. I have about 40lbs of fuel pressure too. I'm really at a loss with it, and can't afford to keep throwing parts and money at it. Any help greatly appreciated. Thanks.

 

[superj]

welcome! you will get some people to help in a bit.

 

[dvdswan]

Welcome to the site. Any pictures?

 

[Andy's1989ranger]

Not at the moment. It's setting in the shop with no hood on it.

 

[dvdswan]

Makes for great engine shots...

 

[Rhino Ryan]

welcome to the forum mate, hoipe you can find some answers here, any pics of the car?

 

[Andy's1989ranger]

 

[Andy's1989ranger]

This was the night I bought it. It's had a few improvements since then.

 

[Andy's1989ranger]

 

[superj]

looks like a good truck.

 

[Andy's1989ranger]

If it'd run right it would. It has to be simple and easy, I just haven't been able to figure it out.

 

[Rhino Ryan]

View attachment 84708

Looking better than my truck haha.
Liking them side mirrors, want them on mine too, the ones i have are the same size as my fist

 

[SenorNoob]

I didn't see it mentioned so air filter? Does that model have a MAF sensor? If so clean it.
Any codes?
Distributor loose enough to move under load?

 

[Andy's1989ranger]

So, I did find the problem, and it was a vacuum leak. I still need to do some investigating on where tho.