GM Longroof Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.



 
HomeHome  PortalPortal  GalleryGallery  Latest imagesLatest images  SearchSearch  RegisterRegister  Log in  

 

 heating up while at hwy speed?

Go down 
3 posters
AuthorMessage
64vette




Posts : 9
Join date : 2009-09-25
Age : 74
Location : North Carolina

heating up while at hwy speed? Empty
PostSubject: heating up while at hwy speed?   heating up while at hwy speed? Icon_minitimeMon Aug 02, 2010 3:38 pm

The 95 RMW has started heating up while at constant hwy speed. I can take it out of overdrive and as the engine RPM increases, it will cool down. Could the radiator stop up like the heater core does? I installed a new radiator about 40k ago and a new water pump about 80K ago. Your thoughts please.
Back to top Go down
sherlock9c1




Posts : 2399
Join date : 2009-05-28
Location : Huntsville, AL

heating up while at hwy speed? Empty
PostSubject: Re: heating up while at hwy speed?   heating up while at hwy speed? Icon_minitimeMon Aug 02, 2010 4:44 pm

I would suspect the water pump impeller to be slipping if this is the case.
Back to top Go down
phantom 309

phantom 309


Posts : 5848
Join date : 2008-12-28
Age : 114

heating up while at hwy speed? Empty
PostSubject: Re: heating up while at hwy speed?   heating up while at hwy speed? Icon_minitimeMon Aug 02, 2010 8:40 pm

i,d check the thermostat,. if its stuck up it'll heat up at hiway speed ,.water has no soak time in the rad,.
Nick
Back to top Go down
64vette




Posts : 9
Join date : 2009-09-25
Age : 74
Location : North Carolina

heating up while at hwy speed? Empty
PostSubject: Re: heating up while at hwy speed?   heating up while at hwy speed? Icon_minitimeTue Aug 03, 2010 5:59 pm

Well, rather than trial and error, I changed the pump, thermostat and flushed the radiator. Problem seems to be solved. I am going on a 40 mile trip tomorrow. I'll keep you posted. Thanks for the replies.
Back to top Go down
phantom 309

phantom 309


Posts : 5848
Join date : 2008-12-28
Age : 114

heating up while at hwy speed? Empty
PostSubject: Re: heating up while at hwy speed?   heating up while at hwy speed? Icon_minitimeTue Aug 03, 2010 6:18 pm

64vette wrote:
Well, rather than trial and error, I changed the pump, thermostat and flushed the radiator. Problem seems to be solved. I am going on a 40 mile trip tomorrow. I'll keep you posted. Thanks for the replies.
well that certainly covers all bases,. no more thoughts required,.

nick
Back to top Go down
Sponsored content





heating up while at hwy speed? Empty
PostSubject: Re: heating up while at hwy speed?   heating up while at hwy speed? Icon_minitime

Back to top Go down
 
heating up while at hwy speed?
Back to top 
Page 1 of 1
 Similar topics
-
» A/C - Heating Ducting
» Heating Issue
» Leaking coolant over heating and no heat
» 93 RMW heating blows cold air. Everything else seems to work. HELP
» Speed Bleeders

Permissions in this forum:You cannot reply to topics in this forum
GM Longroof Forum :: Longroof Tech :: Engine-
Jump to: