Mazda service section said my downpipe was glowing red. And exhaust temp was 510 or so. I'm lost. Please help.

 

Is that exactly what they told you? Where did they measure the temp? And exactly how were they running the car before the DP glowed and they took the temp?

 

lol, My EGT gauge reads 1200°F at WOT in 4th gear.

 

I have no idea how they where running the car. I think they got the reading from the diagnostic box. Although I'm noy sure. I had some words with them because they were not suppose to start the car. It was in the shop for them to look for a fuel leak which caused a small fire in the engine bay. They told me that if they put a rag by the exhaust tip it would almost catch on fire. I wonder whats the temp supposed to be. They said some where around 150. That sounds low. I wonder if this might have something to do with the fire.

 

The egt might be 150 on a Honda Insight but not a rotary.

 

I think they measured around the downpipe...or just after it

 

Doesn't sound like your mechanic knows what he's talking about. 150 degrees is normal? What a bull!

 

yea my exhaust would and did many times.. burn the hair off my leg if i stood in front of the tip for more than 2 sec...(took me 2 times to learn )


i was amazed like i know the exhaust is hotter than the fires of hell, but it was just idleing not even after a hard run

mazda is the WORST place to take your rx7 i dont know of any good shops in your area try posting a ques in the regional forum i guess your considered the mid west...

theres a million stories of how mazda screwed up someones rex...

 

Mmm, thats the perfect temp. to cook up some nice tombstones! What do you want on your tombstone?
Damn, sorry I'm hungry.

 

What would cause the downpipe to glow?

 

Radiation.

 

hehe I remember when a friend of mine got too close to the tailpipe at idle... he lost all the hair on his leg below the knee and was hopping around swearing... I love my car

 

lol the dp will glow for alot of reasons..it can be from just runnig it hard to having a clogged cat/precat
whats your boost curve

 

Everything is stock on the car except the downpipe and cat back system.

 

drop everything you are doing right now, and go get your car. Slap the mechanic and run for your life..

It is fine that people don't knwo about FDs, but be upfront about it, don;t bullshit people. That shop coud do serious damage to your car,, run Lola run.

 

I picked the car up yesterday and had some words with the management. They tried to charge me 217.00 to change plugs and do some diagnostics work that i did not authorize. Needless to say i did not pay them ****.

 

good work...the dp is prob glowing b/c your main cat is clogged...whats the boost pattern(you have a boost gauge right?) and how many miles exct....

 

no boost gauge. It has 77,000 miles.

 

They said the exhaust at the muffler tip was very hot. If the cat was clogged would exhaust be coming out the muffler?

 

ok odds are your cats clogged causing the glowing dp...is the car feeling slower? you may not be getting full boost 2....


best bet is to find a mech in your area who knows what they are doing...

as far as the fuel leak it could be the fuel lines, (was the re-call done?) or a new tendancy im seeing is the fuel pulsation damper....

bes bet is to either find someone local who can help you or seach down a fd frendly mechanic

 

Please let me know where is located your probe

 

Are you sure this is a rotary technician? ALL rotary exhausts are hot.

 

Maybe your camshaft if bent or you threw a rod, LOL. Sounds like the cat. It was after market it could be timing.