5.7L Hemi (2006 Durango) occasionally burps (overflows) coolant

[BULL]

Our 2006 Durango 5.7L occasionally burps up a large amount of coolant (maybe a quart?).

This same motor also has a history of eating water pumps and/or thermostats.

Anyone have this experience with this motor?

Any idea what, or how to prevent it?

Every time its done it in the past (once every couple of years) I've checked fir problems, found nothing, and then been fine.

It's annoying and the wife is a bit unnerved by it (it's her crappy weather driver).

 

[1971demon]

Our 2006 Durango 5.7L occasionally burps up a large amount of coolant (maybe a quart?).

This same motor also has a history of eating water pumps and/or thermostats.

Anyone have this experience with this motor?

Any idea what, or how to prevent it?

Every time its done it in the past (once every couple of years) I've checked fir problems, found nothing, and then been fine.

It's annoying and the wife is a bit unnerved by it (it's her crappy weather driver).

Pepto Bismal..

 

[BULL]

Pepto Bismal..

That's about as much effort as I care to put into this particular vehicle...

 

[1971demon]

That's about as much effort as I care to put into this particular vehicle...

It's kickin 20 yrs. old in the teeth...time to buy her a new one...

 

[BULL]

It's kickin 20 yrs. old in the teeth...time to buy her a new one...

She's got the 2019 DSRT as her fair-weather daily driver

 

[1971demon]

She's got the 2019 DSRT as her fair-weather daily driver

WTF...there is only 2 of you in the household...why do you need 4 vehicles....bet yer parents never need 4 vehicles..

 

[BULL]

WTF...there is only 2 of you in the household...why do you need 4 vehicles....bet yer parents never need 4 vehicles..

A vehicle for every task???


; )

 

[1971demon]

A vehicle for every task???


; )

Adopt a life of sloth...(sell 2 vehicles)

 

[1971demon]

Adopt a life of sloth...(sell 2 vehicles)

Since retirement we have transferred 2 more vehicles to our personal use...a Tahoe (war wagon with a plow)...and an older company Cadillac..(not sure what yr. but it's a big one)....w/over 200k..it looks good..and floats like a dream...my new DD

 

[BULL]

I've seen your garage, remember?

: )

 

[1971demon]

I've seen your garage, remember?

: )

OOPS..

 

[Unholy707]

Usually when this happens and there's no issues with the water pump or cap, it means something is pressuring the cooling circuit. Unfortunately, this could be a lot of not so good things. Head gasket going, pin hole in cylinder. Does it happen at a specific temp or driving conditions?

 

[Unholy707]

You could also have a blockage if it's high mile. You could try flushing the system, seeing if you have a lot of scale buildup in the radiator

 

[1971demon]

Usually when this happens and there's no issues with the water pump or cap, it means something is pressuring the cooling circuit. Unfortunately, this could be a lot of not so good things. Head gasket going, pin hole in cylinder. Does it happen at a specific temp or driving conditions?

It seems to happen every time he drives by an "Old Country Buffet"...I'm stickin with the Pepto Bismal...

 

[HWDan]

Have you tried to open the bleed port on top of the water pump housing next to to the thermostat? Maybe you have a bit of air trapped in the system. You can bleed it cold.

 

[1971demon]

Have you tried to open the bleed port on top of the water pump housing next to to the thermostat? Maybe you have a bit of air trapped in the system. You can bleed it cold.

A qt of fluid is a lot...he said it happens intermittinly...but not that often...why it happens repeatedly..and so infrequently is perplexing

 

[Speedy!]

You checked the lower radiator hoses for collapsing? I had a similar issue on my old RT Challenger and had to put a spring in the lower hose.

 

[HWDan]

You checked the lower radiator hoses for collapsing? I had a similar issue on my old RT Challenger and had to put a spring in the lower hose.

2nd this, had it happen to me as well on the 5.7. (no symptoms however, noticed one and just had both of them changed.)