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1994 G-20, 4.3L : Guages pegged or frozen, running rough
Possible red herring info: Regeared last week from 3.73 to 3.08 & a limited slip diff. (I know that I need to rewire the VSS.) Drove fine after gear swap past few days. Don't think this is related but mentioning since it is most recent work done to vehicle.
Left house today - van behaving normally. Within 2 miles noticed it was running differently - seemed smoother at highway speeds. Just an odd feel while driving.
Then noticed speedo was not where it "should be" (disregarding error from gear swap) and that oil pressure was frozen at 40#, voltage pegged at 0, water temp at 0, speedo frozen at 58mph.
Pulled over: Idle was smooth while I looked around for obvious things.
When pulling back out engine began to bog down, spit thru throttle body and had almost no power - could barely move the vehicle. Returned home with van taking a long time to reach highway speed - serious loss of power.
Yesterday cigarette lighter stopped working & given cluster is electrical (analog - NOT digital!) I'm assuming there is a connection.I know that some guages will peg out if the sending unit is grounded or open so suspect a wiring issue.
Hoping someone has some experience or feedback with this and can point me in the right direction.