Gauges are doing wierd things
My water temperature gauge reads half when the truck has been sitting for a
week. it has become harder to start, then runs great. Took off ground strap
from intake to firewall and cleaned, now oil and water idiot lights are on?? oil
pressure gauge still reading properly but water is still reading wrong than as
it heats up in goes to max hot even though it isn't. My truck has a 4.2l
engine. Please help I don't understand these vehicles with all these sensers