No radiator pressure???

[rappin_ernie]

Hi Everyone,

I went and looked at an 05' GTO today with a newly rebuilt motor with a new cam and springs. It ran and sounded great, however when looking over the car, I noticed even after running for 30 minutes, the radiator cap was cold. I slowly twisted and no hissing, so I pulled it and there was no pressure and antifreeze was barely warm. This is with the engine running keep in mind.

It doesn't overheat and the temp gauge is a little over a 1/4 after 20-30 mins of small test drive and idling.

Any ideas? The AF was not oily and I couldn't find any leaks.

Thank you all,

Mike

[Knight]

Depending on the outdoor temp, and the tstat in the car, it's possible.

[rappin_ernie]

Depending on the outdoor temp, and the tstat in the car, it's possible.

I think that may be it, a 160 themostat. I'm just nervous because I'm putting down a lot of money. I will be going back friday and hopefully bring it home!

[Knight]

Post pics if you do!

[rappin_ernie]

Well I picked her up last friday and have about 300 miles on her so far and shes running like a champ. Here are some pics of the car, I know they suck but it was pouring outside all weekend so I only got garage shots. I will post better ones when I get a chance to wash and get a wider shot.

[initechpeter]

Nice car.

[Knight]

[pajeff02]

Congrats!

[0rion]

sure you weren't grabbing the overflow lid? The radiator cap is under the shroud if memory serves me correctly. The overflow cap is the yellow one.

[rappin_ernie]

It is the chrome chrome cap under the shroud

I took some better pics today...

[cammed goat]

Could be fine, but I would pressure check the ratiator cap just to be safe. Nice goat Mike.

[rappin_ernie]

Could be fine, but I would pressure check the ratiator cap just to be safe. Nice goat Mike.

Thank you sir, yours as well!