Grandpa_truck
Newbie
So here we are again working mysteries without any clues. (Bob Seger)
If you saw saw my last post about the A.I.R valve not looking like any of the photos listed as replacement parts, than you know what I’m up against. Vehicle is a 1988 GMC C1500 Sierra SLE 2wd 350 TBI. My temp gauge is only reading about 160 which seems kinda low. When I purchased the truck I had very low temp reading of 110ish. Change thermostat and picked up some temp, but still not normal op temp. Tested actual coolant temp at idle with temp probe in radiator and again with IF gun, both read the same at about 150. No problem there. But I’m getting to poking around I check the temp sender on the driver side of cylinder head and again come up with a completely different picture than what’s in my engine. Mine it the clip on pin style and what comes up on a parts search is the spade style. Being this is a new to me vehicle I’m concerned there was an engine swap by PO which would make sense since I’m having such a hard time matching parts. So my question(s) is did GM make an update and this is early style / split year , (this sender unit is used on the older c10’s that I know of from past trucks I’ve owned). Can I use the spade style in its place, with or without replacing socket. And lastly can I be chasing a ghost and I’m actually just not getting the temp in the engine….
First pic is my truck,2nd pic is what I get in a Google search of my truck, 3rd pic is what I get when I enter vehicle info in parts look up on rock auto, advance auto, and autozone
If you saw saw my last post about the A.I.R valve not looking like any of the photos listed as replacement parts, than you know what I’m up against. Vehicle is a 1988 GMC C1500 Sierra SLE 2wd 350 TBI. My temp gauge is only reading about 160 which seems kinda low. When I purchased the truck I had very low temp reading of 110ish. Change thermostat and picked up some temp, but still not normal op temp. Tested actual coolant temp at idle with temp probe in radiator and again with IF gun, both read the same at about 150. No problem there. But I’m getting to poking around I check the temp sender on the driver side of cylinder head and again come up with a completely different picture than what’s in my engine. Mine it the clip on pin style and what comes up on a parts search is the spade style. Being this is a new to me vehicle I’m concerned there was an engine swap by PO which would make sense since I’m having such a hard time matching parts. So my question(s) is did GM make an update and this is early style / split year , (this sender unit is used on the older c10’s that I know of from past trucks I’ve owned). Can I use the spade style in its place, with or without replacing socket. And lastly can I be chasing a ghost and I’m actually just not getting the temp in the engine….
First pic is my truck,2nd pic is what I get in a Google search of my truck, 3rd pic is what I get when I enter vehicle info in parts look up on rock auto, advance auto, and autozone