Hi, I have a 2003 Forester 2.5X with over 100,000 miles on it. It is a manual shift. Whenever I am in slow traffic and I am using clutch control to crawl along, or have stopped and am idling, the RPM's start to climb. I can be stopped with no foot on the pedals and the RPM's could be racing up to 2500 sometimes higher. Or I could have the clutch down and be in first gear and again the RPM's race this high. It only seems to happen in hot weather. I took it to the dealership and they have no clue what it can be. Any ideas?

Hi, I have a 2003 Forester 2.5X with over 100,000 miles on it. It is a manual shift. Whenever I am in slow traffic and I am using clutch control to crawl along, or have stopped and am idling, the RPM's start to climb. I can be stopped with no foot on the pedals and the RPM's could be racing up to 2500 sometimes higher. Or I could have the clutch down and be in first gear and again the RPM's race this high. It only seems to happen in hot weather. I took it to the dealership and they have no clue what it can be. Any ideas?

 

It could be a number of things. But when a problem is heat related one of the first likely culprit is the coolant temp sensor. Tell that to the dealership and ask them to check it with their OBD monitor.

No CEL? if you get a CEL get the code checked otherwise you may have something sticking like throttle blave, IAC, coolant temp...etc

 

Cory