conjohncept

Idle the car will stay at 170ish
When I get the on highway the car will go all the way up the the middle of the gauge so im guessing thats 220?
City Driving its exactly 180 all the time

I have a hypertech 1008 160 degree thermostat also
Flushed out the hole entire system when I changed the Optispark

Do I have a bad waterpump or something? I Havent the slightest clue
My transmission was slipping also when it decided to run hot so after I get the tranny rebuilt im going to fix this

Is the tranny slipping and gone bad the reason the engine gets hot possibly?

gregrob

iTrader: (8)

Properly bleed the cooling system

mrchyzy16

iTrader: (1)

^what he said. Sounds like you have some air in the system. look on shbox's site on how to do it properly.

joelster

Is the air dam in place underneath the car?
If the tranny is slipping the rpm's should be higher which would spin the water pump a little faster.

RamAir95TA

iTrader: (2)

I don't see what the problem is. 220 degrees is perfectly normal. The factory fans don't even come on until 227 degrees.

A thermostat alone won't have a significant effect on coolant temperatures at speed - you need it coupled with earlier fan programming to take full advantage.

idformula

If the trans is overheating, it will make the motor run hot/overheat.

RamAir95TA

iTrader: (2)

Explain...?

30696bird

iTrader: (4)

I can see how this "could" happen. If the transmission is VERY hot the transmission fluid going through the radiator might be able to heat up the water/coolant. First place I'd look is the air dam.....that will for SURE make the car heat up when going down the road. I know first hand.

RamAir95TA

iTrader: (2)

I suppose it's possible in theory, but I doubt there is enough heat exchange present for the trans fluid to actually heat UP the coolant.

idformula

How much of the rad is the transmission cooler? The excess heat has to go somewhere, and the coolant is the closest somewhere. I think that about 220 is too much for going down the road, and the tranny slipping would cause more heat from the transmission.

NewOrleansLT1

220 is normal with ac on sitting in traffic. 195-200 is about right when going down the street, but once heat soak kicks in its hard to get the temps back down...

89crxsi

I agree with this. These cars come from GM running that way. The only thing weird is his engine is 220 on the highway and 180 in town,with my lt1 cars it's been the opposite ; around 175-185 highway and 200-215 city with stock rad/fans/stock temp thermostat using an aftermarket guage..

As for air in the system,this is possible. When I had air in my system the guage would go straight up every time I came to a stop,,then goes back to normal,,then back to hot,,etc.. Do you notice this?