1999 Venture heat gauge rises

[joeshannallie]

I just have a question. It has a 3.4 and I replaced the head gaskets and intake gasket awhile back and I broke one the front manifold studs when I was putting it back together and I just let it be. There is no exhaust leak. My question is would this in any way cause the heat gauge to still want to rise when you are on the freeway or in a drive thru? When you have to pass or go a little hard on the interstate like up hills it wants to rise and it is ok with normal driving on the freeway.

[Blue Bowtie]

That should not cause any heating. There may be gasket fragments, sludge, or foreign objects or debris from the head and intake work affecting coolant flow through the radiator. It could also be coincidental that this occurred after the head work.

One item to verify is that all air is purged from the cooling system. There are bleeders in the system for that purpose.

[Tech II]

Exactly, how long ago was this work done? Did it start to overheat right away?

Does your cooling system have an aux. cooling pump on it(located over air box).....