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Old 01-06-2006, 03:01   #1 (permalink)
Adam
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97 Cougar Problem

We have a 97 Cougar with the 4.6v8, I have a question, this engine will
crank over, but it backfires through the throttle body, even more when
starting fluid is added. Could this car have jumped timing? A Friend said
it had a blown head gasket.....Could this be true?


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Old 01-06-2006, 06:01   #2 (permalink)
Backyard Mechanic
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Re: 97 Cougar Problem

"Adam" <abuse@verizon.net> wrote:

> We have a 97 Cougar with the 4.6v8, I have a question, this engine
> will crank over, but it backfires through the throttle body, even more
> when starting fluid is added. Could this car have jumped timing? A
> Friend said it had a blown head gasket.....Could this be true?
>
>
>


That could be true... sometimes a Head gasket can fail between cylinders,
and the only indication is as you see.

Suspect valve or spark timing first, though

--
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
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Old 01-06-2006, 08:01   #3 (permalink)
Adam
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Re: 97 Cougar Problem

I figured maybe it had jumped timing, because it still will fire but it
seems like its at the wrong time...If it is the timing chain/gear worn out,
will that hurt the engine? Can it be fixed without internal damage?


"Backyard Mechanic" <pettyfog@yaywho.com> wrote in message
news:Xns9743580A7AD4Fpettyfogery@207.115.17.102...
> "Adam" <abuse@verizon.net> wrote:
>
>> We have a 97 Cougar with the 4.6v8, I have a question, this engine
>> will crank over, but it backfires through the throttle body, even more
>> when starting fluid is added. Could this car have jumped timing? A
>> Friend said it had a blown head gasket.....Could this be true?
>>
>>
>>

>
> That could be true... sometimes a Head gasket can fail between cylinders,
> and the only indication is as you see.
>
> Suspect valve or spark timing first, though
>
> --
> Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
> you pay..DEAL with it!



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Old 01-06-2006, 10:01   #4 (permalink)
Backyard Mechanic
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Posts: n/a
Re: 97 Cougar Problem

"Adam" <abuse@verizon.net> wrote:

>
> I figured maybe it had jumped timing, because it still will fire but
> it seems like its at the wrong time...If it is the timing chain/gear
> worn out, will that hurt the engine?


Could be or maybe not.. there's a thing called a 'leak-down test' that
would determine if valves are bent. Or headgasket fail between cylinders.

> Can it be fixed without internal
> damage?


Probably

Note: You arent going to get comprehensive help on the entire problem and
solution/repair, here. There simply isnt time or energy. The answer is
to get a book, or the shop CD off ebay... and figure things out for
yourself.

Further info may be on

http://www.lincolnsonline.com/

Or

http://www.crownvic.net/ubbthreads/index.php

Because it's the same engine

--
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
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Old 01-06-2006, 11:01   #5 (permalink)
Adam
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Posts: n/a
Re: 97 Cougar Problem

yeah I know I cant get ALL the help here I need I just wondered if it could
have possibly hurt the valves or not because I was told this wasnt a
"free-turning" engine.

"Backyard Mechanic" <pettyfog@yaywho.com> wrote in message
news:Xns97437C3759C0Epettyfogery@207.115.17.102...
> "Adam" <abuse@verizon.net> wrote:
>
>>
>> I figured maybe it had jumped timing, because it still will fire but
>> it seems like its at the wrong time...If it is the timing chain/gear
>> worn out, will that hurt the engine?

>
> Could be or maybe not.. there's a thing called a 'leak-down test' that
> would determine if valves are bent. Or headgasket fail between cylinders.
>
>> Can it be fixed without internal
>> damage?

>
> Probably
>
> Note: You arent going to get comprehensive help on the entire problem and
> solution/repair, here. There simply isnt time or energy. The answer is
> to get a book, or the shop CD off ebay... and figure things out for
> yourself.
>
> Further info may be on
>
> http://www.lincolnsonline.com/
>
> Or
>
> http://www.crownvic.net/ubbthreads/index.php
>
> Because it's the same engine
>
> --
> Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
> you pay..DEAL with it!



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