So I flushed and cleaned out my 93's radiator and coolant system. I put a new thermostat in, it also has a rebuilt injector pump. Ok so what im trying to figure out is why the truck gauge is reading its over heating but I pop the hood and the hoses aren't swollen and I can touch them with out burning my hands. When im driving down the road the temp gauge reads it fluctuating between 185 and 211 with no load on the truck? Any suggestions or help would be greatly appreciated. thanks

 

A/C DELCO only for thermostats

 

Thanks for the advice ill check my receipt and make sure I purchased the delco stat....

 

Could also be the sensor for the gauge found in the drivers side cylinder head near th frt.
bad connection maybe or sensor going bad?

 

Ok so I didn't put an AC Delco stat in so I ordered one from my local chevy dealer and I'm going to give that a try then if that doesn't I'm going to look at the sensor. Hopefully the stat solves my problem I appreciate the help from you guys

 

Did You Bleed All The Air Out Of The System And Do You Have Heat From Your Heater Core

 

Ok so the update was i ordered the Ac delco stat and put it in now gauge and truck work perfect. Runs better than ever after flushing the coolant system to i hardly reach 195 on the temp gauge. Now on to the next project of fixing the newly broken down Lift pump always something with my old girl. heres to hoping thats all thats wrong.

 

The oil pressure switch powers the LP when the engine runs and is a common failure item.
AC Delco ONLY for OPS and google OPS relay mod and install for long term durability.

 

Thanks for the advice im going to look right into it

 

Well i replaced the lift pump and the truck ran good as new thankfully wasnt the oil pressure switch and with the new stat shes ready to go untill the next thing breaks. Thanks you guys for all your help it was priceless i couldnt have found a solution as quickly with out you!