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90 Towncar Glowing Manifolds

gs_jim
January 5th, 2005, 03:13 PM
I have a question ? I have a 1990 Towncar with you know the 320/5.0 engine. The question is what makes the exhaust manifolds glow ? I was thinking the cats but is there a chance that both sides are bad as both sides of the manifolds glow ? Would one side make both glow ? Please let me know...

Dereck
January 5th, 2005, 04:03 PM
Hi Gs Jim

I have a question ? I have a 1990 Towncar with you know the 320/5.0 engine. The question is what makes the exhaust manifolds glow ? I was thinking the cats but is there a chance that both sides are bad as both sides of the manifolds glow ? Would one side make both glow ? Please let me know...

Faulty thermactor system maybe, first job is to whip out the code reader and check for stored fault codes in the PCM.

Regards

Dereck

brentalan
January 5th, 2005, 07:03 PM
That could be indicitive of a lean condition. I would also check your spark plugs for color/damage.

gs_jim
January 6th, 2005, 07:51 AM
The plugs are new. The other i forgot to mention is the car is weak at takeoffs also.

gs_jim
January 8th, 2005, 08:15 AM
Think i got it. Timing was way off and fried plug wires...

pepperman
January 8th, 2005, 09:48 AM
:W to :V

CaptainZilog
January 8th, 2005, 10:09 AM
Rule of thumb:

Manifold/headers glow - lean
Cats glow - rich

Bizw0z UK
January 9th, 2005, 05:42 AM
Rule of thumb:

Manifold/headers glow - lean
Cats glow - rich

Nothing glows -yer battery is flat.

;)


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