Jeep fails evap. smog test

SOURCE: jeep won't pass smog test

its taking a chance if u dont want to spend the money u may be able to patch with kit or exhast tape i am a ny inspector and i may over look if it were quiet and i would be able to get good reading to exhast probe otherwise my hands are tied. i have a 90 and its a runner worth the investment i know it still has a lot of life left in it

SOURCE: 92 Jeep Cherokee losing power up hills / EVAP failure

Running out of power going up a hill is generally the fuel pump. Now days a plugged catalytic converter will do it also. The fuel evaporation test could be a bad gas cap or evaporation canister or hose somewhere. The exhaust manifold is a jeep thing, expansion and contraction, hot cold over and over. Have it welded or replaced.

SOURCE: failed emissions

a new pcv is only like 3 bucks try having injectors cleaned out

SOURCE: 1993 Grand Jeep Cherokee has fluctuating High emissions

everthing effects the reading. pedal position, rpm load engine temp. air temp. all that stuff you added was just a waste of time and money. What you should of done wa diagnosed it correctly so your not cheating an emission test. Since barley failed the first time I would of recommended a tunup if not done in 40,000 miles. I would have looked at the scanner data to see if the inputs were correct. Iwould have serviced the oil if its been awhile. If everything checked out i would of recommended a catalytic converter. But there are 3 test to determine if the cat is dead we do first. If your car was barley failing and you needed a tunup and the cat was still good the need for a tuneup could toast the cat within a couple weeks.

Testimonial: "Assessment was correct. Needed the catalytic converter replaced."

SOURCE: Jeep comes up with EVAP Emission Control System code- please help

YES A CAP FROM THE DEALER WILL MOST LIKELY SOLVE THIS ISSUE...SOME OF THE AFTERMARKET CAPS ARE NOT MADE TO THE PROPER SPECS TO MAINTAIN PROPER PRESSURE/VACUUM ON THE SYSTEM WHEN THE EVAP TEST BY THE COMPUTER OCCURS

Testimonial: "Thank you- I'll try that."