Discussion Starter · #1 ·
I recently purchased a 93 turbo idi. Truck has 143k on it. Always maintained, seems to have cat ec-1 red coolant in it. 2 days after i bought it, it developed a loud belt squeak. Someone sprayed that black belt dressing on it and there were chunks stuck on the smooth idler pulleys. I cleaned them up with no change. So i replaced the idler pulley, no change. Then I tried the tensioner. After I replaced the tensioner, the first drive the truck temp gauge started climbing up to M on normal. It NEVER went even close to that before. Always went to O then the t-stat would open and it would run on N all day long. It only did this under acceleration. I pulled over and shut her down for a minute to check the belt, then it cooled back to N. Why would changing that tensioner cause that unless it was bad and not turning the pump enough? I still have a squeak too. This rise in temp was only after driving about 1-2 miles. On my way back home it ran between o and r. Still higher than it normally does. Was this just a fluke and my t-stat stuck maybe? I am at a loss.