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No power


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5 spd, don't know the gearing but i know its the dana35

A 5-speed should have 4.10 gearing. With stock tires, it should feel halfway decent around town up through 3rd gear, but will sort of run out of steam over about 50 MPH once you hit 4th and 5th gears. It's difficult to judge whether or not yours is "normal" because we don't know how you drive, or what kind of vehicles your frame of reference is based on.

 

The MJ isn't a rice rocket. It weighs over 3,000 pounds and the 2.5L was the base, econo-box engine. That combination was intended for getting you from here to there, with decent gas mileage. It was not intended to set the world on fire.

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make sure nothing is wrong with it.

 

I know what's wrong with it. His 4.0 is missing two cylinders.

Funny funny. just found one on cl, needs lifters, rockers and push rods. Would not hesitate, but have no where to drop the engine in. I just got a new injector for it, havent put it on yet but hopefully it helps

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what do you mean by "no power"

 

I have a 2.5L TBI,AX4,3.55 gears and 31X10.50's

 

only mods are cold air intake,no cat and a flowmaster muffler. the truck actually suprises people,it can burn the 31s if i get on it hard enough,runs 75mph+ on the interstate no problem and can out accelerate some small cars.

 

only time i notice a problem is climbing steep hills.

 

 

its not a rocket but i wouldnt call it a turd.

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what do you mean by "no power"

its not a rocket but i wouldnt call it a turd.

 

 

 

Well the more i tear into this truck, the more i realise what a total idiot the previous owner was. everything is rigged up and his methods are giving out now. I'm just really glad I'm an ok mechanic and my dads an awsome one cause we have some work to do lol

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Get a new 02 sensor for it too. Mine was horrible when I got it, and I limped it around like that for a while, then put an 02 sensor in it just because, and it made a huge difference. Ive also done the cold air tube, removed the engine fan for an electric one, and re-geared to 4:10's and have noticed minor gains. Next would be a throttle body spacer, gut the cat, add a header, cam, change to 4bbl carb intake manifold, port and polish the cyl head, go to maximum overbore in the cylinders, add a turbo..... it all depends on how much you want to spend in time and money. There are a bunch of guys on here that will tell you to just swap in a 4.0, but to many of us that just isnt feasable, and it is more fun "tuning" on a 4 cylinder. But that will only get us so far before we start seeing diminishing gains. If the 4 is all you have to work with, by all means do it! Just remember though that it is still just a 4 cyl and you can only expect soo much.

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