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Old 1st April 2009
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Default What could cause hoses to burst?

I am trying to figure out why the hose that runs from the thermostat pipe to the top left side of he radiator just burst there is a small laceration that leaked coolant all over the place. This is after idling the car for 30 minutes without revs.

I recently just finished fixing and replacing the Oil cooler and thermostat as well as replacing a main coolant hose to the circulation pump at firewall, which had another laceration of equal proportions.

I am thinking there is possibly a blockage in the coolant circulatory system?
Maybe I need to replace the circulation pump?
Or is this a common sign of something else rather, not working?

thanks
The car is a 1999 9-5 3.0
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Old 1st April 2009
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Hoses wear out ... just that simple.
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Old 1st April 2009
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Do you have a part number to the hose that runs from thermostat pipe to top left of radiator?

Would you tell me please, what the circulation pump does... would it be the same as the water pump but in this case for the coolant?

I still have a feeling there's something more to this burst ...

thanks
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Old 1st April 2009
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I had a brake vacuum line fuse to a coolant hose. They were both rubber.... When I tried to separate them the coolant line was left with a hole in it...


I believe you are looking for #16...
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Old 2nd April 2009
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Thanks Al.
I ordered the EPC today lol. It proves invaluable.
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Old 3rd April 2009
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If it's any comfort....I'm with SaabScott on the hose wearing out. I had the same one burst on my V6 too. In talking to my Indy about it, he confirmed this was the hose that frequently goes. His theory was it was more prone to bursting due to all the bends in the hose. I can't remember his rationale on why the bends would make a difference but it sounded good to me!

On the V6, once you replace the oil cooler, thermostat, radiator and upper radiator hose you should be good for another 100k miles.......right? I guess I'm just hoping!

BenP
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Old 3rd April 2009
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yeah if you have the extra cash it would be a good thing to change out all your coolant hoses and thermostat at one time.
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Old 3rd April 2009
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Quote:
Originally Posted by toxicavenger
yeah if you have the extra cash it would be a good thing to change out all your coolant hoses and thermostat at one time.
I'm pretty much at the end of my first journey here with this car. Meaning my first project is complete, I've pretty much exhausted my mechanical knowhow and should get it driving. (Today)

I have driven it and it seems fine, my only concern is the engine seems a little loud but the idle is perfect. It has cut out in reverse but I reckon its due to some air pockets in the pipes that run along middle manifold. There is some minor smoking from radiator and wish the fan would cut on quicker but that's probably due to some coolant splash and haven't read on how to test radiator yet. I hope all is circulating well and the engine just needs time to drive its self back to norm, there are a few ping and tapping noises that really scare me, but I here with miles it'll go away. I also here its due to incorrect Octane level in fuel.
Definitely changing coolant lines soon.
Re-flush coolant with special cleaner fluid for milkshake like consistency x2
Final oil change before inspection.

I had my SID fixed and I imagined reset too. I also took out the battery an forgot to hold memory using that memory holder gadget. Although I have a check engine light on due to most likely squishy hoses and faulty heater valve (no heat with heater on), What exactly is suggested I do to the computer system at Saab dealer, I here there is new software or something? (which bring me to new thread)

Thanks
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