Just scored my first jeep (project). 1990 straight six engine, manual trans. Frame is good, has a fuel delivery problem. only paid $500 title and all! Wondering if you guys have any ideas as to the fuel issue, has a carb on it?? thought fuel injection came out in the 90s? also, was going to swap the axles from on the springs to under. Any tips? thanks!
I have the same engine. Mine has an aftermarket Weber carb on it. Seems a lot of guys swap over to this carb. Though I spoke to a carb guy about it, he said he prefers the stock one and can make that run better than the Weber. It also has the nutter bypass, which eliminates a lot of the vacuum lines and emissions stuff. I'd guess you just need a cleaning and adjustment if you are getting fuel to the carb.
If you aren't getting fuel to the carb check the filer (obviously) and the fuel pump. The 4.2 has a mechanical fuel pump on the left side on the engine down low.
well, today i replaced the fuel pump and fuel filter, blew out the lines, and rebuilt the carb. Runs longer but still fades out when the starting fluid runs out. i can see gas spray in the carb when pumping it, but looks pretty bad. Must have been sitting a while. So im going to drop the tank and clean it all out, add fresh gas, blow the line out again and hopefully she'll purr!
To add onto this, Cap and Rotor, 8mm Spark Plug Wires etc.
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