About kenji Toelken Expertise I will do my best to answer questions regarding chassis electrical, suspension, car audio, parts fabrication, engine and drive train. I don't claim to know everything there is to know about mechanics, hopefully through this experience I can learn some stuff from all of you as well.
Experience I have been involved in auto mechanics and restoration for 30 years. I have owned and restored about 50 cars ranging from Peugeot to Hillman. I have recently built 2 CJ-5's from the ground up, fabricated parts for both and currently own a Cherokee XJ in progress.
Expert: kenji Toelken Date: 5/22/2008 Subject: Tapping to louder tapping
Question We own a 1989 jeep Cherokee and when we first got it it had a tapping sound on the passenger side about mid motor now it seems like its getting louder and louder I've had several mechanics look at it and one said lifters one said rods and one said oil pump and I did the stethoscope trick and it sounds more upper than lower and its between number 3 cylinder and number 4 any clues. Thanx Lanky
Answer Hi Lanky,
By your description I'm going to go with the person who said they thought lifters. That's what it sounds like to me. A rod or rod bearing sounds like a knock rather than a tap. If it's louder at cold start and quiets a little bit after it warms up I would say lifters. If you have good, steady oil pressure at the guage, I would think lifters.