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85 Olds cutty sup.I put in a new magnaflow cat converter and I noticed it turns cherry red hot. Could it be the oxygen sensor needs replace

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  • Cars & Trucks Master
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Not O2, but could be restricted muffler full of old converter debris.

Posted on May 01, 2015


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Posted on Jan 02, 2017

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SOURCE: 1996 Jeep Cherokee. O2 sensor problem.

i would check with the dealer who changed the converter to check and see if the sensors were damaged while they replaced the converter or may be they have forgotten to hook it back up check before you throw away your good 02 sensr

Posted on Nov 12, 2008

  • 599 Answers

SOURCE: little power cat converter red hot locate massive air flow sensor

the catalytic converter is clogged,needs to be relaced or other exhaust restriction check pipes and muffler, disconnect after the catalytic converter see if cat still glows

Posted on Apr 15, 2009

  • 64 Answers

SOURCE: catalytic converter replacement!!

you should be fine just as long as the replacement part meets emissions standards. You don't actually need one if you don't have to pass an inspection.

Posted on Jun 25, 2009

  • 9 Answers

SOURCE: 1999 GMC Sierra 5.3L knocking sound around Catalytic Conerters? ?

on my gmc i have 2 knock sensors and im not possitive if you have two or not under your intake mani but when i replaced both mine i got the same code of low input so i took the small needle out and wire brushed it clean and also traced and ran a new wire just to be safe and that solved my problem. as for bank 1,2 if it helps any my bank one is located engine side driverside and bank2 is engine side passenger side and 3 and 4 are underneath bed side. but you can see the sensors if you look real close near the headers. hope this helps
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Posted on Jul 02, 2009

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SOURCE: p0422

I have a 1999 VW golf GL 2.0 code p0322, p0422, and p0303 I need help.

Posted on Mar 23, 2010

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1 Answer

Olds alero 3.4 location for oxygen sensor bank1 sensor 1

O2 sensors ( oxygen sensors ) are located after the cat converter and for bank 1 it will be after the cat converter attached to the manifold closest to the firewall
the sensors that you see in the exhaust manifolds or before the cat converter are heated oxygen sensors (HO2S) and are completely different to normal O2 sensors

Mar 27, 2017 | Cars & Trucks

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How many oxygen sensors in a 1992 Cutlass Supreme engine 3.1

one oxygen sensor (O2) for each bank after the cat converter
there is one for each bank of heated oxygen sensor (HO2S) in the manifold or exhaust pipe before the cat converter
different sensors doing different jobs

Oct 28, 2016 | Cars & Trucks

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Toyota T100 loses power when driving. New spark plugs, wires, fuel and oil filter

new catalytic converter may be faulty restricting exhaust causing loss of power.

Oct 14, 2014 | 1997 Toyota T100

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Catalytic converter turns red hot on my 2002 ford escape

The cherry red is probably due to raw gasoline being burned in the converter. Since the engine isn't running right (and I'm surprised you didn't say the Check Engine light was on), there seems to be some kind of valve timing issue or perhaps a burnt valve that is causing at least one cylinder to not fire and thus expel the fuel/air mixture into the exhaust stream. This can be confirmed with a compression check of the cylinders. If they are all low, then there is a problem with valve timing, possible a jumped belt/chain. If only one cylinder is low, then a burnt or broken valve is more likely.

Jan 15, 2014 | Ford Cars & Trucks

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85 cavalier headers glowing red hot after short trip.

Stop using it--- if not ruined already

You have a timing issue

Need to replace any timing belt,all oxygen sensors ruined
& exhaust converter when problem is resolved

Nov 25, 2012 | 1985 Chevrolet Cavalier

1 Answer

When warm runs rough sets knock sensor code will hardly idle turn front cat cherry red car sat for a year put new gas in it when cold runs great

If the cat is cherry red as you say it is I would check the firing order or timing they may have crossed plug wires this will cause the exhaust manifolds to get red hot and glow let me know if this heled you and good luck.It definitely sound to be timing related or crossed wires.

Feb 09, 2011 | 1999 Mercury Villager

1 Answer

1995 Boneville 3.8 no supercharge. starts and idles fine but when reved up to about 2000 rpm starts missing/backfiring badly.exhaust would become red when reving up.removed cat converter did not look bad...

you need to check the 02 sensor that is on the engine

the converter is probably blocked if it is turning cherry red.

try putting some fuel cleaners in your system like heet from auto zone

you need to make sure the wires are in the right order

make sure there are no breaks in the wire

if you have a check engine light, you should take it to auto zone to get it tested for a better insight

Dec 05, 2010 | 1995 Pontiac Bonneville

4 Answers

Would like to check 02 sensor

A scan tool would work better.Then you can monitor the o2 while the vehicle is running.Also check the exhaust system to make sure it is not kinked or the exhaust system is blocked.If it is good then the problem is usually the catalytic converter.Hopoe this helps.Good luck.

Mar 15, 2010 | 1999 Chevrolet Cavalier

4 Answers

Lost of power, exhaust pipe turning cherry red.

7 - TP Sensor (Throttle Position)
This is the problem with my vehicle i have a Honda cat turned cherry red smoked the color was white and i looked at the ecu for the flash codes i got 7 witch is stated above replacing that sensor should help the problem. I am doing the same thing tomorrow going to buy the part install it and hope it fixes everything if not i will come back and let you know. everything above you say i am having the same issues so its not just you :)

Jul 11, 2008 | 2000 Daewoo Lanos

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