Cooling problem... Odd issue

[5.0Flareside]

ok guys on the way into work this morning i noticed my temp gauge going up and up and up.... well i let off the gas cause traffic had slowed down and almost as soon as i did the temp dropped as well... got back in the throttle, temp starting going back up... and it wouldnt dropped till i slowed down...

did this on the way home too...

any ideas?

just started this morning..

 

[flareside_thunder]

I'd guess a bad fan clutch or a radiator hose getting sucked shut.

 

[1985 Ford F-150]

Check the coolant level to see if its low could be an air pocket in the system. Might also replace the thermostat just to be safe.

 

[LEB Ben]

What about the water pump not flowing at higher rpms.

 

[flareside_thunder]

Mmm waterpump cavitation...been there, hated that.

 

[73F100Shortbed]

I would check to see if coolant is circulating, possible air pocket, and waterpump. If those are all ok then it might be a headgasket.

 

[smokey]

Air pocket or hose calasping those are new hoses might have hot a bad one

 

[5.0Flareside]

Well it was The head gasket blowing Tue rest of Tue way.

 

[flareside_thunder]

You popped a head gasket?

 

[5.0Flareside]

Yeah. It had been slightly leaking for a while. Just finally gave.

Read my new thread.

 

[flareside_thunder]

I did...hopefully you've got the Cornsucker runnin though...

 

[5.0Flareside]

Nope not yet. It had a heater hose leaking. Picking up the part tomorrow and swapping it on. 30 minute job.

Borrowing my moms car till I get the chebby POS going again.

 

[flareside_thunder]

Ahhhhhh, you've got the GT40's to go on there right?