1994 Other Saturn Models COOLANT

Tiny
MECHJOKE
  • MEMBER
  • 1994 SATURN
Engine problem
1994 Other Saturn Models 4 cyl Front Wheel Drive Automatic 130k miles

Just did a water pump It was leaking. Now when I refill the tank, it is leaking just below, @ the 1st hose @ the first clamp. Thought the clamp had pinched the hose. But after cutting top, still leaks.

Is it possible that air is in the system and backing up the coolant? If so, How do I bleed?
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Saturday, December 29th, 2007 AT 4:17 PM

4 Replies

Tiny
MHPAUTOS
  • EXPERT
Hi there,

Replace the hose and clean the outlet of any corrosion, pressure test the system and the radiator cap as well, this will prove the integrity of the system. To bleed open heater tap to hot, run engine untill temp comes up and heater is hot, feel heater hoses both should be hot, keep an eye on coolant, as it will drop hen thermostat opens.

Mark (mhpautos)
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Saturday, December 29th, 2007 AT 5:07 PM
Tiny
MECHJOKE
  • MEMBER
Where is the heater tap?
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Sunday, December 30th, 2007 AT 10:18 AM
Tiny
MHPAUTOS
  • EXPERT
Hi there,

As this is not a car we see here in Australia, I am not 100% sure, but it will be in the heater hose line under the bonnet or as part of the heater assembly under the dash, I am having trouble access our data base just now, if you do still have a problem locating it, I will ask another moderator to assist you in locating it.

Mark(mhpautos)
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Sunday, December 30th, 2007 AT 4:15 PM
Tiny
MECHJOKE
  • MEMBER
Thanks Mike for your imput.

I fixed the leak, but not as advised. I knew it was leaking @ the 1st clamp, just below the refill tank.
I was going to replace the hose, but when I disconnected it, I noticed that the heater core side (leaking hose joins heatercore T just below the tank) hose (metal hose very soft alloy) was a "perfect oval" in shape It should be round. Thus the leak @ the clamp. I started to squeeze VERY GENTLY the hose with a pair of pliers, to re shape. I stopped because it wasn't uniform, and had a flatside. I then found a tapered paint brush with a slightly wider diameter than the hose. I greased it up, slid it in and turned it, and reshaped it to a circle. The paintbrush was a soft wood material, important. As to keep heater core hose from cracking etc. Very soft alloy

I had read about leaks @ the tank, and intermintent leaks that could not be found, and I wounder if I have stumbled onto an answer that has been a problem. The oval shape was not completely noticable, but I was determined, had run out of money, and did not want to replace the hose. I was staring at the thin forever, when I noticed the shape.

It seems that whenever one uses pliers to pull the hose back, the core connecection is EXTREMELY SUCCEPTABLE TO DAMAGE AND OR ALTERATION.

I still need to know where the bleeder is, as I have an air pocket :D
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Monday, December 31st, 2007 AT 11:22 AM

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