Stop safely now message
Ridiculously Active Enthusiast
Joined: Apr 2008
Posts: 895
From: Los Angeles
Re: Stop safely now message
Honestly, I don't know much about the sensors other than I have read (here, maybe) that some people have had them go bad and need replacing. I think if the temperature sensors in the HV battery go bad it is possible that they can make the computer think the battery is either too hot or too cold to start or at least go EV. I do know that the only things that the MECS pump cools is the stuff in the transaxle and the 12V charger.
I drove from Austin to Las Vegas through really hot weather and never had an issue and I have the original MECS pump.
I drove from Austin to Las Vegas through really hot weather and never had an issue and I have the original MECS pump.
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Enthusiast
Joined: Sep 2008
Posts: 11
Re: Stop safely now message
I'm sure most FEH owners have had no problem running their car in hot weather. The point is I had a problem starting my FEH in hot weather- and was trying to find out why, on 3 separate occasions in 6 years under the same hot weather conditions, my car failed to start. Once the car was started, it would continue to run, even in hot weather. For instance, I'd stop for gas or at the supermarket- try to start the car later to leave, and it wouldn't start- nearly identical conditions each time.
Happily, the dealer has seemed to have fixed the problem, which appears to have been bad wiring to the PCM.
Happily, the dealer has seemed to have fixed the problem, which appears to have been bad wiring to the PCM.
Ridiculously Active Enthusiast
Joined: Jun 2006
Posts: 881
From: Philadelphia, PA
Re: Stop safely now message
On the bright side, you won't have to worry about your vehicle shutting down on the highway WHEN the MECS goes bad. According to my wife its terrifying. So, you just spent the same $600+ I spent, just proactively!
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