Question

I have a 98 Jeep Grand Cherokee Laredo that's giving me a p0442 error code. Fuel cap has been tightened and I have manually checked and traced the hoses to make sure its all snug and tight. If it is a small hole/leak or a rotting hose how would I fix that?

thanks

Answer 1

P0442 Small leak detected

The LDP (leak detection pump) a disconnected line or even a kink vacuum line can set this code condition,