I have a 2000 Caravan with 3.0 engine. It has 144K miles on it. Have driven it for about a month with no problems. Motor is so quiet can hardly hear it running, its very smooth. Until I changed the oil, now it has a clicking sound from motor.Sometimes it will quit clicking for awhile, then start back up. I put pennzoil hi/mile 10W/30 with purolator 1 oil filter. What should i do first? Not sure where to start.

 

I changed the oil again. This time I used 3 1/2qts Mobil 1 and 1qt Lucas engine treatment. Quiet as a mouse, no ticking.

 

The Mobil One/Lucas combo seems to be the best for eliminating the tick. My 97 3.0 has almost 250K miles and that's all that keeps the ticking noise at bay for me. From what I've been told by every mechanic I've asked, the ticking noise is common and not a cause for alarm. It's just how an old Chrysler engine sounds.

 

Hope i can get 250k out of mine. Thanks for the reply

 

Just take care of it and hope for the best I've been very punctual with all the fluid and filter changes and tried my best to immediately tackle any tiny problem I noticed. BTW, this is the original engine AND tranny, I've had far better luck than most.

 

Thanx for the info regarding the ticking. I've never tried the Lucas Oil treatment, but I will now.

The ticking is caused by the hydraulic valve lifters. They require oil pressure to operate properly, and when the oil pickup gets blocked, the pressure drops and the lifters start making noise, hence the ticking sound.

GT