Ok folks, my LT1 has betrayed me!

Couple days ago I was cruising home from work, I pulled into my apartment complex. I was slowly cruising in.. Every tiem I drove past a car it sounded like there was a sprinkler on, finally I realized the sprinklers werent on and that it MIGHT be my ccar, so I look at the temperature and quickly park, I WAS OVER HEATING! CRAP! So any ways I had somone I knew come over and check it out, guess it was the waterpump. We replaced it and now the heating problems gone, but im worried that maybe getting hot caused some kind of problem.. I am noticing when I had the hood up last night just checkin to make sure everything was running alrite monitoring the temperature at idle rigght at the middle of the gauge. But it sounds kinda like fluttering should I say, somthing doesnt sound right. Kinda ... like a knocking? But hard to identify since my car knowledge is short, Anyone have any idea on what may of went wrong?
And by the way we found that there was coolant on top of the opti. Sound like the opti here? Or somthing else?

 

I would change the Oil, and be real easy with it for a while, and see what it does. Mine threw a Head Gasket, and it was running under 200 degrees, these things can be bitchy...

 

just dump the oil. it probably has antifreeze in it. also check the oil filter for any metal?

 

How hot did it get?

 

3/4 and probably alot hotter after It was shut off

 

I was thinking of using Seafoam, maybe I should sea foam my **** then change oil?

 

Isnt the stock fan turn on somewhere in the 220s-230s?

 

160 thermo/early fan tuning cures everything.

 

Yeah the stock fan comes on way late, I wired up my own fan switch, cost you like $5 in supplies to do so. Didn't matter much anyway when my hypertech 160 degree thermostat failed in the closed position! Goodbye head gasket, seperated at the rear of #7 cylinder. After the rebuild a 170 Be cool thermo went in, they are supposed to fail in the open positon.
I always thought that was a stupid design, water pump fails, and to tell you it streams water out of the weep hole, which is above the opti, who approved such a stupid design?

 

My fans were setup to constantly run, and I have the AC removed. It runs around 200 at all times, 210 running it at the track. It could possibly have a 160 T-stat in it, it was Hypertech tuned when I bought it.

 

Aluminum doesn't like heat. If it went too high you might've warped a head.

 

How hot do you think it would warp at, like over 250..
Anyone have a Head warp and remember what it was running at?

 

If you mean 3/4 of the gauge that's not really uncommon. Unless it was in the red zone and your fans never came on.

 

Does my prroblem sound opti related?

 

i say change the oil and look for antifreez, the oil will be real watery. If their is should probibly look into a head gasket.

 

check opti

 

When my head gasket blew my temp gauge was maxxed out. I had no coolant flow cause the thermostat was closed so of course the fans didn't help in the least.
I'm suprised that constant temps are around 200, is that the average for people? Wiht the 170 themostat I seem to run around 180, same in town cause I flip the fans on as soon as I hit the off ramp. Unless the temp gauge is lying? Or are alot of you guys not running a fan switch?

 

I run a manual fan switch with the stock thermostat. I have the 160t awaiting time for install. Manual switch was the best thing for me as I never let it go over 180. I think it's 180...the first line
Does the knock go away after warm up? GM's tend to have the lifter knock I've noticed and low start up oil pressure

 

No.

Your problem is likely one of:

thermostat
radiator
water pump
coolant hoses/air in system
improper coolant mix or level
incorrect/too high fan settings

Since you say there was coolant on top of the opti, you may have a leak somewhere.

 

Yes, the waterpump was broken, but the problems im describing right now, is after replacing the water pump.. Not leaking any more.. Read the first post of mine.