Question about Dodge Cars & Trucks
2009 dodge charger 3.5 V6 SXT automatic. No one can tell me why this small hole is there. How can I do a pressure test if the hole is there? After installation, I want to do a pressure test for leaks but, concerned that this small hole will not hold pressure in the reservoir for pressure testing. Thanks in advance for any help
If it has a radiator cap on the radiator , you connect the pressure tester there
Posted on May 04, 2018
Testimonial: "How can I do a pressure test on the reservoir which has a radiator cap if the hole is there? After installation, I want to do a pressure test for leaks but, concerned that this small hole will not hold pressure in the reservoir for pressure testing."
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Posted on Jan 02, 2017
You may be developing a worn head gasket which can allow oil to flow into the engines cooling jacket. If your engine is running rough this is usually a good idication that there is a head gasket leak.
Posted on Mar 20, 2010
could be the water pump itself. i"ve seen pressure tests hold and when pressure is down the seals in the pump leak. if you can see the pump, look closely and see if it slightly misaligned. if it is the pump is bad
Posted on Jun 14, 2010
Hi, its not good news im afraid by you describing that with the coolant cap off and revving the car causes the pressure to build up and push the water back out it sounds to me like the head gasket is on its way out, what you need to do is take it to a garage and dont have a compression test done you need to have a gasses test done, you can buy these yourself if you want to and what it does is this.
its a plastic tube with blue liquid inside it then you take the coolant cap off and place this in its place you then run the engine and rev it up then you squeeze the rubber at the end of the tube and it then sucks the air out of the coolant and through this liquid then if it detects gasses from the engine in the coolant then this turns the liquid green and this is then telling you that the head gasket needs changing.
please dont let it keep over heating as this will cause the cylinder head to warp and you would then need to get it skimmed to make sure its not warped, get the gasses test done as a compression test dont give you a true reading as the engine is not running when they do a compression test.
let me know how you get on or if you need further assistance ok
plz rate this solution as i have a whole page of unrated posts, thanks
Posted on Sep 21, 2010
Possible leak areas waterpump, heater core, intake manifold gasket, radiator or hoses. Waterpumps have what they call "weep holes" which is an early warning system to prevent major damage when pump fails. The weep hole needs to be inspected from below and is usual behind waterpump pulley. If it's your heater core, you should smell anti freeze inside truck and in most cases windshield will fog up. Radiator could be pin hole to front side of radiator (which is buried behind AC condenser & grill) and if it was head gasket, intake manifold symptoms would be coolant in oil OR lots of white smoke from exhaust. Try parking it on a clean dry surface and see if you can narrow down area where leak is coming from.
Posted on Feb 25, 2011
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