its a 1990 jeep wrangler"YJ" with the 4.2
it idles terrible.... sometimes it idles around about 1200rpm when hot.. and sometimes it will idle at around "500rpm also when hot" then shuts off..it gets very bad fuel mileage... like 6-8mpg....new fuel pump.new fuel filter,new muffler exhaust is welded solid,only hole is a small pinhole in the egr pipe.i ran some carb cleaner thru it...
the jeep will run half way decent untill it gets hot..
i only know so much, i need help
it idles terrible.... sometimes it idles around about 1200rpm when hot.. and sometimes it will idle at around "500rpm also when hot" then shuts off..it gets very bad fuel mileage... like 6-8mpg....new fuel pump.new fuel filter,new muffler exhaust is welded solid,only hole is a small pinhole in the egr pipe.i ran some carb cleaner thru it...
the jeep will run half way decent untill it gets hot..
i only know so much, i need help