weird temp issue

[moparvwfreak]

alright, my 73's temp is acting weird. runs nice and cool when in town but at speed on the freeway, it heats up almost to the point of overheating. i know the rad isn't the best but its what i have.

 

if it were the rad, wouldn't one think it would overheat in stop and go rather than on the freeway???

 

also could the water pump, although new when i got the truck last year, not be circulating enough at freeway speeds, but enough to keep it cool at lower, in town, speeds??

 

i would really hate to have BOTH my 620s down for drive train work.

[Z-train]

Sounds like the radiator is plugged.

[DISLEXICDIME]

Sounds like the radiator is plugged.

 

i agree it sounds partially plugged. I had a datsun that did that the upper part of the rad would get hot but the lower driver side corner would stay cool

[moparvwfreak]

flush time then. alright thanks guys :D

[banzai510(hainz)]

make sure the lower hose is not old and soft and collasping on its self when motor is reved up.

[moparvwfreak]

it was replaced after mom hit me 3 or 4 months ago. alt fan ate it up

[moparvwfreak]

well i drained out the coolant, adn added in my super rad cleaner. drove ti all over from home to bothell. normally it would heat up just getting 7 miles out of town. but today she never got above the 14 way mark. i think that helped it. i ahve ot go all over hells half acre tomorrow getting parts for my passat so after that i shoudl drain it nad clear the system. and of course refill it.