2001 Olds Intrigue overheating?

chevyguy28
Thu, 14 Mar 2013 08:05:58 +0000
Maintenance/Repairs

my old lady has a 2001 olds intrigue with the 3.5L in it. Sunday evening we replaced the Throttle Position Sensor and the Coolant Temp Sensor. Monday she was on her way back to Iowa and the tempature gauge spiked up to the Hot area. I looked it over and could not find anything wrong. I sent her on her way and she made it about a mile before it did it again. The car will spike up to the hot area but the motor shows no signs of over heating. I checked the temps with a heat gun while the car is idling and read out Thermostat housing-160, Rad-80, Rad hose-130, and coolant 170. I than ran the car up so it shows on the gauge its hot and than checked again, it than reads Thermostat housing-172, Rad-100, Rad hose-134, and coolant 184. If I am running it at 1500 rpms it will spike up but once i take it up to 2500 rpms it drops back down to normal on the gauge. I am lost for what it could be. Somebody please help me out. Thank you!

22 posts - 9 participants