Yes. If water gets into the O2 connectors the O2 readings get screwed up. (School of Hard Knocks faculty member speaking.)

 

thanks,
I wasn't aware of the dangerous cleaning addiction!
Started the truck and ran it for 5 miles without issues this morning....is that a good sign of possible water intrusion?
Also can someone please direct me on the best parts and source for a full tune up?
I read about the Bosch +4 for sparks and 8mmwiring, anything else? best source? including the O2 sensors?
Sorry to be an inconvenience...
thanks for the time

 

if that is the case; you probably want to clean your 02 connection and refill then with dielectric grease.
I would go to kingsborne for 8 mm wires great wire 30% the price of everyone else.
I like Bosh Platinums not not crazy over the +4, have had good luck with e-3's.
amazon has the cheapest price on 02 sensors

 

thanks!
Anything else that I should do at this moment?
Will like to order all at once and get it well taking care of.
Thanks again for the amazing good replies

 

if you haven't done it by now, you should change out all your fluids.
at the very top of the DII section reads major service

 

already went thru that thread 👍
In theory the PO just did all fluids. But I rather make the investment and start to take care of the truck.
Really need safety and reliability for my wife.
Sorry about some of the questions but I'm coming from the diesel world, so almost no knowledge about gas and never the less about LRs

 

heading to the shop for pressure test, will post results

 

at the shop....

 

once the cap is off the coolant level goes up and the bleeding hoses keeps pushing coolant out....

 

no color change