Too many to list, but here are the main problems: bad fuel tank sending unit, ABS light, check engine light, failed emissions, mysterious thumping noises, noises coming from rear of car, thumping in transmission that mechanic cannot diagnose, terrible gas guzzler.
Down with Isuzu! This is the worst car I have ever owned. I bought it at around 108k miles and within weeks started having problems. The check engine light came on 2 days after I bought it, and it then failed the emissions test due to carbon deposits in the hose connected to the EGR valve. The ABS light is on because wheel sensors are bad; had to replace O2 sensors as well. Gas gauge does not work due too bad fuel tank sending unit, which is almost $500 to fix. No thank you! I just want to get rid of this heap. My sister has the Honda Passport (same car) and has suffered from most of the same problems. My fan pulley bearing system also went out, which was $450 to fix. Honestly, just talking about this car makes me want to either start crying or cussing.