Question about Chevrolet Cavalier
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Posted on Jan 02, 2017
SOURCE: Intermitant temperature
Check to make sure your thermostat works right by monitoring the warming up of your engine. With a completely cold engine, start and run the engine for a few minutes, then put your hand on the top radiator hose to monitor if and when it gets warm as the thermostat opens more and more and note the gauge reading( if it works) the top radiator hose should be unbearably hot within 5-8 minutes. If the therm. opens right it should close right aswell, staying open a little while eventhough the radiator may have cooled may be what you are experiencing causing the rapid cooling and is nothing to worry about. The Hose should not get warm very soon after starting the engine. Regarding you gauge, lets take one step at a time, verify proper op. or the therm.
Posted on Jan 20, 2009
There's two sending units in the intake. The little on with single prong at the t-stat housing is for the guage and the bigger one plastic connector is for ecm.
Your signal is getting grounded somewhere.
Posted on Mar 17, 2009
SOURCE: I have a 2004 Chevy
Hi I will try and help u if i can
Usually a shut down problem which happens at temperature is caused by an electronic part
I would suspect the coil pack ( usually a crack creates an open circuit, that is the crack opens up
when in your case 195 deg and closes back up when cooled down
I`m not totally familiar with your gm product but i know they used to have a problem with an egnition module ( but not sure if this is fitted to your car )
I hope i have been of some help to you
John ( South Wales UK )
Posted on Aug 10, 2011
Testimonial: "Your right ! it was an electrical part that closed back up after the engine cooled down! crank sensor ! easy fix ! except the 1st new one was faulty !"
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