my '94 LT1 is getting hot while spinning more than say 1300 RPM, it will idle all day long, it will run in 6th at 50 mph, on the highway and not get hot but rev it at a standstill or drive it any harder than stated and it will over heat, system is blead, T-stat is replaced, engine is flushed, coolant is new, temp at eather side of the radiator is the same, fan is working properly, compression test shows cylinders are equal, no mixing of oil and water.....my figuring is....eather the radiator is not cooling the coolant or the pump is not properly circulating the coolant. Hints? Tips? Advice? Experiences?

 

Can you be more specific on your temps?

 

i have not added a mechanical gauge yet however the dash gauge puts it at the half way point at idle...all day long, and just above half (not 3/4) going down the high way in 6th at 50mph, once i reach near 2k rpm the temp starts to rise and its my feeling it would rise all the way threw the factory gauge. its my intention to put a mechanical gauge on it this weekend in order to get a better idea of the temps...but in my gut i feel it is running hot. I bought a waterpump, before i install it its my intention to have the rad. flow tested. it dose not leak and to the touch the tanks on either side feel about the same temp. my touch could me miscalabrated LOL

 

Halfway point at idle? No problem - that's normal.

Just over half going down the highway? No problem - that's normal.

No actual confirmation with real data of it overheating? Problem.

Know what I mean?

 

yes, i agree, all seems normal, until one tries to drive the vehicle above 1500RPM....then it would more than willingly peg the factory gauge....it would be happy to sent the gauge off the chart into the orange color that GM picked out to be THE RED. it dose indeed overheat when driven in any condition as song as its not idling along at more than one thousand three hundred revs. per minute. or at a stand still

 

If you don't have a mechanical gauge, or don't want to mess with putting one on. You can also use data logging to check the dash temp gauge with the readings from the computer, since this car has two sensors. If you don't have the capabilities, that could be a good investment for future repairs.

 

Another relatively inexpensive alternative is an IR temp gun to verify temps.

 

valuable info, i dont yet have a scanner for this car, its on my short list of things to get. i still plan on using a mechanical gauge, its cheap and not that complicated. So i have taken off the W/P and it was gross, someone put a tube and a half of silicon and it looks old, now i dont see any signs of leakage nor damage but since its off and i have a new one i am going to replace it and do it right....UGH the morons that did this before!! some people know how to remove parts and put them back on but they have no clue how to actually work on a car! Anyway, Radiator is going to be serviced and W/P is going to be new and T-stat is new and engine is flushed and fans work and air duct is intact and compression is even and there is no mixing of oil and water and the car runs damn good and devlops good power....if this goes back together and still gets hot what in the blazes could i be missing?

 

Just something else to check, make sure there's nothing that you ran over stuck in front of your radiator, such as a plastic bag. That happened to me. Its worth a look.

Good Luck

 

As i have removed the Radiator, and secured the duct work with new fasteners i can assure that there is no blockage, i have also seen this factor on a car that had lots of natural debris between the condenser and radiator. The dude was ready to pay for a head gasket and i gave him his car back no charge, he was amazed at what a simple garden hose did! LOL, admittedly that was a very good day! i have been busy working but today the radiator goes to the shop for servicing and the new W/P goes on! i am glad i have time to work on my car today i am itching to finally be able to spend some quality time with my Camaro!......DRIVING!! not bent over laying on the nose quality time.