Originally Posted by Shtbox

Man o man so I got this overheating problem on this 91 chevy 1500 swb step side it's got a 5.7 with a 5 speed in it.

Here's the story, I buy this wrecked 94 accord slap on some pnp parts and rattle can the front end and trade this guy even for the truck I have now. Anywho, I've only had the truck for about 6 months, so when I get it there's an over heating problem but only on the highway. It will go to about 240 to red on the highway so I was thinking since I got some overtime I'm gonna get down to the bottom of this.

So I take advice from people on other forums with the exact same problems. They all said bad radiator, so I go down to the zone and get one put it in. Same problem, so that was 140 down the drain.

So now I say alright I guess I'll get a water pump its only 30 bucks no problem. I slap it on and still same results. So I say ok I'm gonna take care of this right now. I pull the thermostat out and got the exact same results.

I knew it wasn't the gauge cus it was boiling hot so by now I'm just frustrated and turn to my dad for help. He says check the clutch fan and if its good then it's probably the head gasket. So I do the spin test on my clutch fan and it only spins half a turn start the truck it spins like its supposed to. I rev it up to 4 grand for a minute strait and the fan was still spinning, so I say that's it i had enough of this and I start tearing into this motor.

So long story short I pull the heads and the head gaskets aren't blown fudge cycle, yea. So while the heads were off me and my brother re seated the intake valves and put new umbrella seats on the intake side of these heads cus the intake valves were saturated with oil. So it wasn't a complete waste of time.

So after that I put this SB back together thinking maybe I fixed the problem right, new water pump, no tstat, new radiator, new head gaskets and lower intake gaskets, new coolant.

Oh, by the way, when I tore the engine apart I found sped pro 30 over pistons and crane cam double valve springs in the head. So that was cool to see.

Anywho, I do all this and work go for a test drive and surprise surprise, right in your eyes the same freaking problem. So after the test drive tonight I was ready to bust this truck for target practice. lol.

So while I got the hose on the truck running, trying to cool it off, my brother walks up and says man there's a lot of heat coming out of the front of your truck. Like there was a fan on the other side of the radiator. So I said what! I felt it and felt the side pointing towards the motor and it was blowing air but barley. So I pull off the clutch fan assembly to investigate and some jackass bolted the damn fan on backwards the word front was imprinted on the fan blades and it was pointed towards the block.

So long story I wasted about 350 dollars and my weekend doing pointless work to my ol chevy all because somebody bolted the fan on backwards! Can you believe that ****

Originally Posted by Shtbox

Yea atomic it's funny now lol so simple of a problem fixed thanks slow 08 and yea whippled I should be good for a while now till I can afford the good ol lm7 swap everyone's so fond of lol I drove home from new branfuls to San Antonio and I didn't even hit the first dash on the gauge(half moon style)22 mile drive so I think I'm good for now