For 30 years, the use of catalysts in cars has been mandatory to reduce emissions and make harmful gases harmless. It normally lasts the entire life of a car, but defects can always occur. If you drive with a faulty catalytic converter, you commit a punishable act and...


































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The Exhaust Pipe Smokes and Smells Bad: How to Interpret the Colors of the Exhaust Smoke Correctly!
It is quite normal for the exhaust pipe of a car to smoke since combustion engines generate exhaust gases that have to go somewhere. You can usually barely see what's coming out of the tailpipe. However, if you have colorations, you should take a closer look. They...
How To Change Your Air Filter – Here It Is!
The air filter is a typical wear part in the car that should be changed regularly. Of course you can go to a workshop for the assembly, however, it does not have to be necessary since it is a job that also a layo could normally carry out without problems. Even if...
Original Ebay Part / Engine Description
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Engine 4.0L And AW4 Transmission Fits 87-90 CHEROKEE / WAGONEER. Condition is "Used". Low mileage 4.0 motor and AW4 automatic transmission from a 1990 Jeep Cherokee/ Wagoneer. The motor has 135,000 miles on it which is low for these motors as you probably know. It was well cared for by an older gentleman until the body rust would not permit state inspection. It was carefully removed and includes all bolt on accessories. The wiring harness that remains in the car is not included. This should fit 1987 through 1990 Cherokee XJ model years. No Shipping. Pick up in Zelienople,Pa. I can load onto your truck or trailer. This item is also listed locally and I reserve the right to remove it if it sells.