Gramps
I'm Awesome
- Joined
- Aug 24, 2012
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Check the coolant temp sender(the one by the thermostat housing on the intake) when they fail the exam defaults to reading it like it’s -40 degrees and DUMPS fuel in.
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Check the coolant temp sender(the one by the thermostat housing on the intake) when they fail the exam defaults to reading it like it’s -40 degrees and DUMPS fuel in.
If the exhaust is stinky, eye-burning "rich", then first off, you've killed the catalyst. Second, the most-common cause of eye-watering exhaust is MISFIRE.
This truck is crying out for a scan tool to look at the data stream--and for someone to inspect the ignition system.
I read that also, but does it effect the gauge at all? My gauge seems to be working fine. Is there anyway to test it or just buy a new one.
Edit: found the resistance chart in another thread, will give it a check tomorrow.
No. The guage is referenced off of the temp switch in the side of the drivers cylinder head tucked between cyl 1-3. The ECM uses signal from the coolant temp sender by the stat housing on the intake, that’s the one that matters.
they are cheap to just replace. and they are known for going bad. did u check the resistance hot and cold? dont remember the exact values but last time i had them i found them on a google search.
a bad fuel pressure regulator can also cause a rich condition, along with any type of leaking or seepage on the fuel lines.
Yes a leaking FPR can cause a rich condition.
NO! Leaking/seeping fuel lines do not cause a rich condition. They are outside of the Throttle body and any leak/seepage is not pulled in to the intake to be burned.