Having problems with your 2005 Subaru Legacy ?

My 05 legacy is nosing power. The service light is on and the cruse light is flashing. No one can find what is going on, and i can't drive it but under 20 miles per hour.

\015 It gets up to 2 and a half rpm's and then the power drops and the rpm's drop down to 2 then does the same thing again.\015 Posted / edited by AnonymousUser on : 19-02-2018

Answers :

You have had it scanned? Free at Autozone, Oreillys, and Advance autoparts.
\015\012Sometimes when an engine is rev-ved up like yours it can cause other things to happen. There are some limit switches that can cut off things.

I am not familiar with your Brand but it may have a Relay for the cruise and the relay may be stuck.

It kinda sounds like the cruise control is bad. Check for wiring diagrams and fuse layouts for your vehicle online at autozone.com. Just register your vehicle and then get a wiring diagram and powerbox layout.
\015\012You want to look for the cruise control fuse and see if anything important is also on that fuse. Then pull the fuse. You should not have any power to the cruise after the removal of the fuse. This may help you and you do not want a runaway car if the cruise is not shutting off.

Some of the foreign Brands do everything electrically with the throttle. But you can check around the air intake on the manifold for butterfly flaps and throttle position sensors. The electric diagrams I mentioned earlier would name the switch a TPS.
Repair Help & Product Troubleshooting for 2005 Subaru Legacy

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