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September 20, 2018, 07:37:40 AM
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Author Topic: Saab overheating again  (Read 4653 times)

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Offline Dreaded1

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Saab overheating again
« on: August 20, 2014, 07:10:51 AM »
Last Saturday I was heading out of town when she overheated on me. I was able to get some water in the system and limp back home. I drove it to work and back Monday and Tues. There is an obvious coolant leak that I did not notice before, but it has not over heated again. Last night was the first time I had a chance to crawl under it. I found the leak coming from near the top of the water pump. I can't tell if it is engine side, pump or if the gasket shit the bed  :cry:. I guess I will be spending this Saturday seeing what I can remove and how much this is going to cost me to get repaired.  :|
« Last Edit: August 27, 2014, 09:36:28 AM by Dreaded1 »
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Offline Dreaded1

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Re: Saab going down, not yelling timber
« Reply #1 on: August 20, 2014, 11:42:30 AM »
I have the feeling this is going to be very expensive. At least I get some more practice removing the radiator and all the good shit that goes along with the water pump.
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Offline FastfreddyRs

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Re: Saab going down
« Reply #2 on: August 20, 2014, 02:06:19 PM »
Look at the coolant pipe that runs above that water pump. They tend to rust where it goes over the top of the motor   And will drip down onto the water pump.   If you look at the water pump you will see 2 bypass rubber lines that come out of it on the drivers side. Then they disappear behind the timing cover and come back out near the oil dip stick.  Or...... It's the Headgasket leaking along the seem behind the timing cover.     Worst case scenario about 1400 to replace Headgaskets.  Let me know what you find out
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Offline Dreaded1

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Re: Saab going down
« Reply #3 on: August 21, 2014, 10:06:40 AM »
Thanks for that Fred, I probably wont have a chance to dig into it until Saturday morning, which really sucks. I want to know now, but I want to wait until I have a bunch of day light hours to work on it.
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Offline Dreaded1

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Re: Saab going down
« Reply #4 on: August 25, 2014, 08:17:04 AM »
After some investigation Saturday we decided that the the thermostat is probably bad, and the cheapest easiest thing to replace. Wrong, 2 days later and I still don't have the old one out yet. I ended up stripping the head on the bottom bolt. I have tried everything to get that bitch out with no luck. 2 different types of sockets "designed" for rounded off bolt heads, vice grips, heat, trying to re-flatten out surfaces with a dremel, even cutting a slot in the bolt head with the dremel. I may be forced to grind the head off the bolt pull the cover then work on the rest of the bolt. That will be my last option and will probably end up with me needing a new cover.
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Offline deadlydave

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Re: Saab going down
« Reply #5 on: August 25, 2014, 12:42:45 PM »
maybe try a bolt/screw 'extractor' drill bit?  I think they sell them at NAPA and probably have them at harbor freight.  Basically, it's a drill bit that is cut backwards, and screws itself into the bolt you're trying to extract as you are running the drill in 'reverse'.

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Re: Saab going down
« Reply #6 on: August 26, 2014, 03:36:15 PM »
Finally got the bolt out. The head was stuck to the housing so we had to grind it off,  once the head was gone the bolt unthreaded by hand. But the new thermostat did not solve my over heating issue. We still have the same symptoms, overheating,  lower hose not coming up to temp, and coolant seeping/leaking between the water pump and block. Why would the lower hose remain cool while the rest of the engine and hoses are getting hot. Water pump non functioning or something else I'm not thinking of?
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Offline deadlydave

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Re: Saab going down
« Reply #7 on: August 26, 2014, 04:13:03 PM »
Finally got the bolt out. The head was stuck to the housing so we had to grind it off,  once the head was gone the bolt unthreaded by hand. But the new thermostat did not solve my over heating issue. We still have the same symptoms, overheating,  lower hose not coming up to temp, and coolant seeping/leaking between the water pump and block. Why would the lower hose remain cool while the rest of the engine and hoses are getting hot. Water pump non functioning or something else I'm not thinking of?

Radiator or other cooling system blockage, or cavitation/air bubble in the water pump?  Broken or stuck water pump impeller? 

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Re: Saab going down
« Reply #8 on: August 26, 2014, 04:40:45 PM »
While pouring coolant back in I could see and hear bubbles in the upper reservoir,  it only leaks when running,  radiator seems to be functioning properly. 
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Re: Saab going down
« Reply #9 on: August 27, 2014, 09:36:04 AM »
Rock auto has the Gates timing belt for $138 http://www.rockauto.com/catalog/moreinfo.php?pk=1872570&cc=1431407
and the water pump with metal gasket for $42.79 http://www.rockauto.com/catalog/moreinfo.php?pk=1390517&cc=1431407

Looks like I will be ordering these and seeing if that helps.
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Offline Pitcrew

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Re: Saab overheating again
« Reply #10 on: August 27, 2014, 09:42:30 AM »
I could be wrong, but I've read the Gates water pump gasket is more prone to leaking over the Subaru one.
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Offline deadlydave

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Re: Saab overheating again
« Reply #11 on: August 27, 2014, 09:52:02 AM »
I could be wrong, but I've read the Gates water pump gasket is more prone to leaking over the Subaru one.

I think we used the Gates kit when we did the Tbelt 2 years ago on the saabaru.  The gasket was indeed garbage, so we used the subaru gasket, but that also wasn't the kit with the metal gasket.

Offline FastfreddyRs

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Re: Saab overheating again
« Reply #12 on: August 27, 2014, 09:55:22 AM »
Did you check that steel bypass pipe that runs up along there
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Re: Saab overheating again
« Reply #13 on: August 27, 2014, 10:18:27 AM »
Yup we checked that bypass too.

We used the Gates kit but got the upgraded metal gasket, the paper one that came with the kit sucked.

Or are we saying there is a difference between the Gates metal gasket and the Subaru metal gasket?

Radiator blockage? I did not flush it when I had it out. I may try that tonight.
« Last Edit: August 27, 2014, 10:31:32 AM by Dreaded1 »
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Re: Saab overheating again
« Reply #14 on: August 30, 2014, 06:02:36 PM »
I pulled all the plugs today and I am not attempting a compression test. I have already found the fuel pump relay in the passenger side kick panel. Now I am looking for the ignition relay. Any hints?

Holy crap is connecting the comp test a pain in the ass.


Anyone have a link to a "how to" thread?
« Last Edit: August 30, 2014, 06:05:40 PM by Dreaded1 »
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Re: Saab overheating again
« Reply #15 on: August 30, 2014, 06:18:04 PM »
Of course my battery is shot too. I am not having luck with this thing recently
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Offline Pitcrew

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Re: Saab overheating again
« Reply #16 on: August 30, 2014, 06:49:40 PM »
Wouldn't it have been easier to just unplug the crank position sensor with the fuel pump and go from there?
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Re: Saab overheating again
« Reply #17 on: September 01, 2014, 11:16:38 AM »
Probably but I didnt see that tip before I did everything else.

So I just finished the compression test
#1 145
#2 168
#3 145
#4 165

From what I have seen 145 seems normal. Why is the other side high? Am I screwed?
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Offline Pitcrew

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Re: Saab overheating again
« Reply #18 on: September 02, 2014, 12:39:12 AM »
Thats....really...weird. Usually 4 is like...low. Maybe you have a engine built by the A team?
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Re: Saab overheating again
« Reply #19 on: September 02, 2014, 09:28:02 AM »
Talked to a friend he said that the high numbers could be carbon build up. ????? But nothing in the test should scare me. Now I am just waiting on parts to arrive so we can do the timing belt and water pump thursday or friday. The car is already dismantled so hopefully we will be able to beat the 11 hour mark Dave and I set.   :2funny: :2funny: :2funny:
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Offline deadlydave

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Re: Saab overheating again
« Reply #20 on: September 02, 2014, 01:25:54 PM »
Talked to a friend he said that the high numbers could be carbon build up. ????? But nothing in the test should scare me. Now I am just waiting on parts to arrive so we can do the timing belt and water pump thursday or friday. The car is already dismantled so hopefully we will be able to beat the 11 hour mark Dave and I set.   :2funny: :2funny: :2funny:

Don't forget to have plenty of fire extinguishers on hand:

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Re: Saab overheating again
« Reply #21 on: September 02, 2014, 03:00:14 PM »
I done learned. I now keep the batter covered whilst working near it.
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Offline Pitcrew

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Re: Saab overheating again
« Reply #22 on: September 03, 2014, 01:44:34 AM »
Should we keep this on call?



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Re: Saab overheating again
« Reply #23 on: September 04, 2014, 02:37:47 PM »
The guy helping me I will be helping tomorrow only drinks Bud. I have no issue dumping that shit on a fire if need be.
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Re: Saab overheating again
« Reply #24 on: September 08, 2014, 07:45:04 AM »
Got is all back together Saturday evening, no fires included. The timing was off a bit the last time it was done so we adjusted it and seems to be running stronger. Unfortunately I still have a coolant leak, this one is worse than the last one, but the car is not overheating. I think I will take it to a mechanic tomorrow to find this pesky leak.

The water pump we removed didn't seem damaged or inop in anyway, so I have no idea what caused the initial overheating issue or what was causing the initial leak. In other words no smoking gun was found.
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