jacobarber
Newbie
This is a '93 Blazer Cheyenne. I got this truck from my dad after he passed, put some work to make sure it would run and drive safely, etc.
The temp gauge hasn't worked since I had it, so I decided to get that fixed. I replaced the temp sensor on the driver's side cylinder head between the spark plugs. The gauge finally came to life, but just a little. The needle never went above the halfway mark between 100 & 210.
I suspected someone put a 160 degree thermostat in, so I took the neck off and saw a 195 degree t-stat. The gasket had pretty much disappeared, so I figured coolant was getting by regardless. Replaced the thermostat, thermostat o-ring, and water neck gasket. Tightened everything down, and even replaced the upper radiator hose which seemed to be rubbing on the alternator bracket.
Ok, got it all back together and took it for a drive. It is just under 60 degrees outside and I drove for ~20 minutes. Still wouldn't move above that same halfway mark between 100 and 210.
So I've replaced the coolant temp sensor, thermostat, t-stat o-ring, water neck gasket, and upper radiator hose. The gauge works but temp doesn't go past ~150-160?
Thoughts on what to try next?
The temp gauge hasn't worked since I had it, so I decided to get that fixed. I replaced the temp sensor on the driver's side cylinder head between the spark plugs. The gauge finally came to life, but just a little. The needle never went above the halfway mark between 100 & 210.
I suspected someone put a 160 degree thermostat in, so I took the neck off and saw a 195 degree t-stat. The gasket had pretty much disappeared, so I figured coolant was getting by regardless. Replaced the thermostat, thermostat o-ring, and water neck gasket. Tightened everything down, and even replaced the upper radiator hose which seemed to be rubbing on the alternator bracket.
Ok, got it all back together and took it for a drive. It is just under 60 degrees outside and I drove for ~20 minutes. Still wouldn't move above that same halfway mark between 100 and 210.
So I've replaced the coolant temp sensor, thermostat, t-stat o-ring, water neck gasket, and upper radiator hose. The gauge works but temp doesn't go past ~150-160?
Thoughts on what to try next?