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98 Seville coolant on the ground


Astrak

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Yep, just great. Well I just had the coolant changed yesterday, and had no problems but when coming home today and letting the car sit in the driveway for a few hours I go out to find a stream of coolant going down the driveway. I checked the coolant level and it seemed ok right at the line, could they have overfilled the coolant and some boiled out or what would cause this?

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I hope they just over filled the overflow tank and some came out when it was hot....otherwise....I couldn't tell ya.

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Be sure the rubber gasket in the threaded cap on the reservoir is clean and not ripped. Maybe it was not tightened properly.

Just keep an eye on the coolant level before you fire it up in the mornings.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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Recently someone commented on the reservoir cracking, but it sounds like they just over filled it

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Surge tank looks good no apparent leaks, need to pressure test some time soon. Hoses look good, but I can't see the side tanks and it's hot outside so I'll just get some more coolant and wait for it to cool down a little.

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I would not be worrying about a head gasket problem, If you had the coolant changed, and thats when you noticed a problem, the problem is most likely linked to the coolant change. Did you change the coolant or have a shop do it? Recheck any connections that were loosened to drain the coolant. There is also the chance that there was a air bubble in the system that has worked it's way out that would drop coolant level. Your temp is staying in the proper range, so don't stress and worry about problems that have not arose drive it and check coolant level watch for coolant leaks when you park, you may find you never had a problem just a bug that had to be worked out.

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Well hopefully, but the reason I took it to get the coolant changed was because the level was low so I would suspect a leak. So to get to the coolant drain plug do I have to remove the cowl thing under the car? Also now the coolant is back to a little below normal level, but just yesterday it was extrememly low, kinda wierd.

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.... So to get to the coolant drain plug do I have to remove the cowl thing under the car?

There is an access hole in LF corner of the plastic panel. A 3/4" deep socket fits on the drain valve.

You can see the drain valve in post #1, the first picture. http://caddyinfo.ipbhost.com/index.php?showtopic=13625

Or, you can simply pull the hose off the thermostat housing. It will drain faster if you loosen the threaded pressure cap on the reservoir.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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Well hopefully, but the reason I took it to get the coolant changed was because the level was low so I would suspect a leak. So to get to the coolant drain plug do I have to remove the cowl thing under the car? Also now the coolant is back to a little below normal level, but just yesterday it was extrememly low, kinda wierd.

This is new information, you had a low coolant level before the coolant was changed.

The best thing you could do at this point is pressurize your cooling system to expose the leak. Some leaks will only show themselves under pressure, I have been threatening to buy this unit from sears:

http://www.sears.com/sr/javasr/product.do?...UseBVCookie=Yes

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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