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Posted

Had a 93 4.0 with a sticky lifter, kinda sounded like this, can of fuel injector cleaner every now and again took care of it, if your lucky its a $2 fix

Posted

Had a 93 4.0 with a sticky lifter, kinda sounded like this, can of fuel injector cleaner every now and again took care of it, if your lucky its a $2 fix

 

Fuel injector cleaner can not cure a sticky lifter mate.

Posted

How could I check for the lifter? Also, I really appreciate all the help guys, I did get an offer on the truck I'd be stupid to not take, but if it's just the lifter, I may be stupid lol. In any event, I will be getting another Comanche at some point if I do sell this one, they're just cool!

Posted

Put a quart of Marvel Mystery Oil into the crankcase and see if it gets better. If you shine a light into the oil filler hole, you can see how much sludge is built up.

Posted

How could I check for the lifter? Also, I really appreciate all the help guys, I did get an offer on the truck I'd be stupid to not take, but if it's just the lifter, I may be stupid lol. In any event, I will be getting another Comanche at some point if I do sell this one, they're just cool!

A mechanic's stethoscope would be great.

 

http://www.harborfreight.com/mechanics-stethoscope-41966.html

Posted

 

 

Had a 93 4.0 with a sticky lifter, kinda sounded like this, can of fuel injector cleaner every now and again took care of it, if your lucky its a $2 fix

Fuel injector cleaner can not cure a sticky lifter mate.

Posted

Don't know how it worked, not even sure it was a lifter, just what some guy at a gas station told me when i pulled in with it knocking, but whenever it started, the injector cleaner made the noise go away

Posted

Well, I've put 200 miles on it in the last couple days and I'm going to put another 150-200 on it tomorrow and there's no change so far in sound. Still no idea what this is, which may seem good, but it still makes me nervous (i.e. can break at any moment). Anyone have a line on relatively cheap engines? Or someone in Colorado know a place that has a good price on rebuilds?

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