why would my exhaust manifold be glowing red hot?

jarmcdev
0

Asked by jarmcdev Jun 27, 2012 at 01:17 AM about the 2002 Ford Taurus SEL

Question type: Maintenance & Repair

9 Answers

aztec626bf
6,965

What type of driving are you doing? It takes a lot of heat to get manifolds glowing. Usually happens under very heavy loads for extended periods of time.

8 out of 8 people think this is helpful.
Tom Demyan
83,215

right, and or they might be clogged. Do you have drivability problems, such as the car not going over a certain RPM or speed?

9 out of 9 people think this is helpful.
aztec626bf
6,965

Never heard of clogged manifold........explain

11 out of 11 people think this is helpful.
gustang
565

Could be a clogged catalytic converter.

3 out of 3 people think this is helpful.
MrBlueOval
2,835

Sounds like a clogged up catalytic converter to me. Manifolds do get hot to touch but not normal to glow unless the exhaust from the engine isn't leaving thru the exhaust pipes fast enough. Converters can clogg up to the point of the car either not running at all or running very rough. If that manifold is glowing, it's probably at 900-1000 degrees and it's too hot to drive and could cause a fire and burn up your car and possibly with you in it. Call an exhaust repair place like Meinke or MIdas or Car-X and see if they think you can drive it in or should you have it towed. If one is very close by by only a few blocks then it should be OK to drive it when the engine is cooled down from the night before but not if it's farther away or the engine is already warm or hot. I myself would just have it towed in just to be safe. You don't want to be in a car that catches fire. It can explode with you in it very quickly if that manifold is glowing. Call the exhaust repair shop and make an appointment, but call a towtruck first, that's what they are there for. to move your car safely. Good luck, Kenny.

6 out of 6 people think this is helpful.
Fernando Corona
95

its simple its clogged up change your manifold end of problem.

7 out of 7 people think this is helpful.
aztec626bf
6,965

It most likely does this only while cruising under high loads? A clogged up exhaust manifold will not glow red hot. It is basically the same as starving your engine of air. You will produce less power therefore less heat. It would be like putting a lawn mower engine carb on a V8 engine.......no power ,......no heat. Even at "wot" you would not generate enough heat. You would have lots of fuel and no air for the mixture all that fuel would cool down the mixture and the combustion. If somehow you have late ignition timing that would cause this scenario.

6 out of 6 people think this is helpful.
Texidor
130

In a 2002 Toyota Sienna i change the spark plugs after a 30 minute drive it stared shaking a it was night by that time we know it, that the manifold was red hot i disconnected the catalytic converter and still got red hot i don't k now what can it be; how do i check if is late ignition timing or if is something more.

12 out of 12 people think this is helpful.
ron1969
30

i got a 1992 chevy truck 350 tbi ehaust glowing red changed o2 sensor and checked exhaust its not clogged up any idea

3 out of 3 people think this is helpful.

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