- Dec 7, 2011
- 24
Hi !
First I think I have a bad T-stat because when pulling my camper (over 5000 lbs) on highway, my ScanGauge showed up 182° so look at the needle and it was 2 ticks lower off center.
Today I started the truck to make the temperature rise and see how far it would go. The temp rised up to 199 at max but on my scan tool (with graph) I saw 2 sudden drops in temperature, strange.... Could it be the cooling temperature sensor failing ?
When on idle I went uder the hood to watch the hoses pressure (looked ok) but the fan kicked on at low speed on idle and it was'nt overheating (under 199° and A/C was off and finnaly the air coming out the shroud was cool, no heat, so no reason for the fan to come on ?
Your advise would be great before I start changing things.
Sorry for my bad english, hope you understand !
First I think I have a bad T-stat because when pulling my camper (over 5000 lbs) on highway, my ScanGauge showed up 182° so look at the needle and it was 2 ticks lower off center.
Today I started the truck to make the temperature rise and see how far it would go. The temp rised up to 199 at max but on my scan tool (with graph) I saw 2 sudden drops in temperature, strange.... Could it be the cooling temperature sensor failing ?
When on idle I went uder the hood to watch the hoses pressure (looked ok) but the fan kicked on at low speed on idle and it was'nt overheating (under 199° and A/C was off and finnaly the air coming out the shroud was cool, no heat, so no reason for the fan to come on ?
Your advise would be great before I start changing things.
Sorry for my bad english, hope you understand !