Absolutely. If the sensor fail in the hot mode once you attempt to restart with cold engine it will be lean and very hard to start. If it fails cold it will continuously dump fuel even once it's warmed.Hello,
I have the exact same issue with my truck. Your post caught my eye because I just replaced my radiator a few weeks back and coincidentally or not my 1500 rpm idle issue started shortly thereafter. Can the coolant temp sensor really cause this?
My truck is a 92 GMC 7.4l 2wd.