2001 Malibu temp gauge not working
#1
2001 Malibu temp gauge not working
My 2001 Malibu with 3.1 temp guage is not working. I have replaced the sender twice, but it only works for a few weeks before it quits. Any ideas as to why it would do that?
#2
When you say "it quits," does it register cold or hot? If cold (or ridiculously cold in a scanner readout), you probably have a break in the wiring which the PCM senses as maximum voltage drop across the ECTS which translates to minimum temperature. Since it does work some, there probably is an intermittent connection inside or near the electrical connector. With the key ON engine OFF, one of the pins on the connector should have 5V and the other should be at ground potential. Pull the connector off the ECTS and then check the signal levels while flexing and/or pulling the wires at the connector.
Last edited by EinST; March 1st, 2011 at 5:33 PM. Reason: Typo
Thread
Thread Starter
Forum
Replies
Last Post
2004MaxxLT
Malibu
3
March 21st, 2009 10:24 AM