Coolant tank almost empty

[wayne36]

The pressure tester cap replaces the over flow cap and it won't pressurize unless you put your finger over the overflow drain and I was able to get it up pressure. Do they make something to block that drain tube?

[Doug_Scott]

It sounds like you need an adaptor for the pressure tester. The rad cap must not be the old style push down/quarter turn cap that I know about. Did the tester come with any instructions or pictures? Have you checked online at the tester's maker website for instructions?

[wayne36]

The adaptor that comes with it just screws on the coolant tank but there was nothing stopping the air from escaping out the overflow port and no it didn't have any pictures and I ask the guy at auto zone and he didn't know of anything.

[Doug_Scott]

The adaptor that comes with it just screws on the coolant tank but there was nothing stopping the air from escaping out the overflow port and no it didn't have any pictures and I ask the guy at auto zone and he didn't know of anything.

 

Take the hose off the other end and plug it with a similar sized bolt and hose clamp? That will stop air from coming out the overflow port.

[wayne36]

Just a little update I have done everything I know to do and the truck has ran fine with no over heated issues or coolant loss. So it was either the rad cap or if you believe in other things the day after the truck over heated we were suppose to travel to my in laws for a quick weekend visit which we didn't go because of the over heating issue and just so happen that day my short term disability payment was screwed up. Who knows we travel the following weekend with no problems and a good visit.