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1997 Ford Thunderbird - stalls with extreme pressure in degas bottle
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ahamm
New User
Oct 20, 2012, 6:07 PM
Post #1 of 2
(1458 views)
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1997 Ford Thunderbird - stalls with extreme pressure in degas bottle
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After replacing a cracked intake manifold on a V8 97 Tbird that overheated and stalled the car fails to idle. The engine runs and sounds ok as long as you stay on the throttle, as soon as you let off it stalls. As soon as you start it coolant overflows the degas bottle. We tested and had approx 120 psi on each cylinder. We cranked the engine with only one spark plug in at a time but the coolant level was stable. We then tried adjacent cylinders and with plugs in 3 & 4 the coolant surged out of the degas bottle. We assumed this meant the head gasket was blown between 3 & 4. But with the head removed, the gasket, head and cylinder wall all look fine. Any suggestions?
1997 Ford Thunderbird LX, 4.6L SOHC, 76K miles
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 20, 2012, 7:23 PM
Post #2 of 2
(1413 views)
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Re: 1997 Ford Thunderbird - stalls with extreme pressure in degas bottle
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You need to send the heads out to a machine shop for testing for cracks and warpage.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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