Question about 2003 Toyota RAV4

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Glowing manifold I have friend who has a toyota rav4 that is running rough. the manifold glows from unburned fuel or something

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  • ezfe Oct 30, 2008

    there is an engine oil linkage throw the intake manifold.

  • Jeff McFall
    Jeff McFall May 11, 2010

    Is there any smoke leaving the tailpipe and if so what color is it?

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  • Expert
  • 113 Answers

Have his catalyic convertor replaced it is clogged

Posted on Jun 16, 2008

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Posted on Jan 02, 2017

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1 Answer

What would cause my muffler to glow redhot on a 99 navigater


Raw unburned fuel is entering the exhaust system. Is the vehicle running rough/misfiring? IS the check engine light on/flashing? If so, have the codes scanned to isolate the problem cylinder causing this issue

Jan 20, 2016 | Cars & Trucks

2 Answers

Replaced Catalytic Conv., Fuel Pressure Reg, Fuel Pressure Sensor, Muffler/exhaust. Cat still gets glowing orange/red. Any help ?


Do a compression check of the engine. You may have a bent or burnt exhaust valve that is letting unburned fuel get into the exhaust stream. It will burn in the cat and that can cause the red glow.

Oct 28, 2015 | Cars & Trucks

1 Answer

Engine management and battery light on


battery means the charging system is in failure mode.
running engine. all lights glow key on, not running.
so if they glow , the ECU may also report bad charging ( it can)
and glow the CEL lamp, you scan it and see the errors
get it scanned,
btw the car will stall soon, when the battery dies.
so dont drive it.
all autostores in uSa (most) can scan it for free.. 1billion google hits on that now.

Jan 14, 2014 | 2003 Toyota RAV4

1 Answer

Exhaust glows red from manifold to tail pipe


Clogged catalytic convertor or unburned fuel is burning in the cat.

Dec 05, 2013 | 2001 Oldsmobile Aurora

1 Answer

Volkswagen passat catalytic red hot problem, causes and solution


The catalytic converter will glow red hot when it is burning unburned fuel from the cylinders. One very probably cause is that one of the cylinders is not firing because it has a bad coil. If that is the case, the engine should be running very rough. To find out which coil... either get the engine code read, or unplug the wire from the coil and see if the engine does not run any rougher (put the plug back on quickly because that is more fuel not being burned. Replace that coil with new one from auto parts store (about $30).

IMPORTANT... do not try to figure out what coil is bad by unplugging the coil itself from the spark plug... if you touch the side of the cylinder head with the bottom of the coil, you will short it out and have to buy another one (I speak from experience).

RECOMMENDED - buy one extra coil and keep it in the car. Whenever your car starts to run very rough and have low power, pull over and replace the bad one. It takes 5 minutes tops, and only needs a dime to get the engine cover off. No other tools necessary (well... something to move the connector lock).

Another reason could be it's running rich. That is possible if the Mass Airflow Sensor is bad, or possibly the cam position sensor. These are easy to replace with a Google search showing how.

If your catalytic converter is glowing red hot, you have probably wrecked it. It _may_ be ok, but likely is fried and your engine light will be on and the code will indicate you have low efficiency on catalytic converter on bank X. If a 4 cylinder, then it will always be bank 1 because there is only one. If a V6, then it will be one of the two banks. But it will be the one that glowed red. Cats are expensive, and expensive to install, so if you see your cat glowing red, do not drive the car. Not to mention, Passats leak so much oil that it is a fire hazard.

Good luck!

Oct 10, 2013 | 2003 Volkswagen Passat

2 Answers

Glowing manifold on 2000 Sable. Why would it get that hot??


maybe a blocked cat, or leaking intake causing into to run hotter

Dec 31, 2012 | 2000 Mercury Sable

1 Answer

Glowing manifolds


to much fuel into the exhaust manifold your converter could be causing a restriction have you lost power is your check engine lite on is this an older car with a smog pump sometimes with a smog pump it will push the unused fuel thru the manifold an burn off causing the manifolds to glow

Jul 13, 2012 | Buick Regal Cars & Trucks

2 Answers

My toyota land cruser is poor to start first thing espesialy when its cold , I have replaced the glow plugs and fuel fillter


didyou replace the manifold heater?
have you checked the relay?have you checked to see if there is actualy power getting to the glow plugs? and also the fuse .
It is very srtange ,if the glow plugs are working ,for it not to fire up straightaway .Does it miss when it does first start?If so, the glow plugs are not all working.Last thing try giving it a squirt of aero start, or starter fluid , if with that ,if it doesn`t start straight away, then you better come back to me as i have another idea what could be a problem but I dont think the glow plugs are working properly so try the aero start first "youdoit"

Sep 13, 2009 | 2000 Toyota Land Cruiser

1 Answer

Very dificult to start


I would change fuel filter any way only £6 delivered on ebay then i would start looking at glow plugs and relays first check to make sure glow plugs are getting a live feed bad side glow plugs are located under drivers seat side of engine so not easy to get at unless you remove seat carpet and engine covers

Feb 19, 2009 | 1993 Toyota Previa

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