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Old 03-27-2004, 07:44   #1 (permalink)
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351 W runs poorly when car warms up...

Hey guys I have a 351 W in my 79 Thunderbird Town Landau, and I cannot figure out what the problem is! It will start right up, and run just fine, but only for about 5-10 minites. Once it gets warm, it will kind of sputter, and lose power, and eventually just die altogether. About one hour later, it will again start up perfectly. We have replaced the fuel pump, PCV valve, and some other things alongside the tune-up. Now, we think it is either the EGR valve, or worse, it may be time for an oil pump and possibly rod/main bearings. When we purchased it, we were lied to, and told that it had 53,000 orig. miles, but after looking at the condition under the valve covers, it obviously has 153,000. Thanks for any help you can give.

Jim
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Old 04-01-2004, 15:15   #2 (permalink)
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Re: 351 W runs poorly when car warms up...

I'm afraid my little thread was covered up...I just wanted to submit a reply to get it back on the 1st page. If you can help, please reply or send me an email, to TheAlmightyJim@aol.com thank you fro the bottom of my heart!

Jim
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Old 04-01-2004, 21:56   #3 (permalink)
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Re: 351 W runs poorly when car warms up...

I had a similar problem a few years ago in my old car, it turned out to be the coil had a crack in it .When it was cold it ran fine but after about 5mins, it would start to miss and lose power.
Hope this helps.
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Old 04-03-2004, 15:25   #4 (permalink)
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Re: 351 W runs poorly when car warms up...

Thank you so much! If anyone has anything else to add, no matter how obvious, or confusing, please let me know!

Jim
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