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Re: P0455 Code and Temp Gauge Drops Posted by bobc [Email] ![]() ![]() ![]() In Reply to: P0455 Code and Temp Gauge Drops, John-n-Indiana, Mon, 13 Jul 2015 17:07:04 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I'd say you have two unrelated issues.
- The temp guage drop to zero is the ECU's way of telling you that the thermostat is stuck open and the engine has been running a little cooler for a little longer than the ECU would like.
- P0455 is an evap leak and can be tough to track down. Maybe folks have suggestions on that.
but by all means, start with a new thermostat and coolant temp sensor.
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