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New and need Help

Old 09-13-2009, 04:48 PM
Junior Member
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Join Date: Sep 2009
Location: North Canton Ohio
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Default New and need Help

My son has a 93 Honda Del sol I have put new radiator in it new thermostat The problem. When he drives it so much pressure in the cooling system Blows all the coolant into the overflow tank then onto the ground. Oh yes new radiator cap also it is the 1.6 litre motor I am baffled what next. How about some help here I am a Mopar man all this is driving me crazy thanks for any help.
Old 09-15-2009, 09:11 AM
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Join Date: Sep 2009
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Have you performed a leak down test of the motor? I have seen this issue in older supras before where there was a blown headgasket causing the coolant to be either pushed through the system due to cylinder pressure being pushed into the coolant system or coolant sucked into the cylinders.
Old 09-15-2009, 09:44 AM
94civichatchback's Avatar
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Join Date: Dec 2007
Location: whitwell,Tn 37397
Posts: 4,676

its either a defective therostat or a bad head gasket. i suggest a leak down and compression test and also take the thermostat out and give it a try.
are there any other signs besides the pressure??
Old 09-15-2009, 06:32 PM
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Join Date: Feb 2008
Location: San Leandro, CA
Posts: 2,059

try the thermostat first cause its hella cheap and easy to remove. If that doesnt work, leak down test. =). O and make sure you bleed the system after!
Old 09-16-2009, 03:07 PM
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Location: North Canton Ohio
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Smile New and need help

Thanks guys allready did the thermostat route and the bleeding of air out of the system only one thing left leak down test and head gasket time guess ill be a little busy thanks for all the help.
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