CEL problem ID'd...stuck shutter valve
04-27-2007, 08:46 AM
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CEL problem ID'd...stuck shutter valve
Dropped the car off Tuesday got it back yesterday. CEL and stumbling problem ID'd a result of a stuck shuttle valve. Fix was pulling hte head, decarbonizing the intake , unsticking the valve.
Car seems to run better; had question but didn't bother asking the service guy:
--how does this amount of carbon get into the intake and will this be a continueing problem? Swoopes--didn't you have this problem?
Car seems to run better; had question but didn't bother asking the service guy:
--how does this amount of carbon get into the intake and will this be a continueing problem? Swoopes--didn't you have this problem?
04-28-2007, 08:36 PM
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The valve opens at
roughly 3800 rpm--right? I know I shift usually around 6-7K and run 3500-4000 rpm on the highway. I may have to talk to the wife..
04-30-2007, 03:20 PM
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Originally Posted by Mr986
04 GT MT with 32K on it.
I'm worried again because now I have 62kmi and it's out of warranty.
04-30-2007, 04:13 PM
#10
Originally Posted by swoope
two sets of valves, the ones i am talking about open at ~7200 rpm... and are very expensive to fix..
beers
beers
thats the *pain in the **** part about this engine.
Its expensive to fix because in order to fix this problem they have to *drop* your engine down, basically open everything up to replace the stuff.
Labor alone will kill you.
I had CEL about it b4, and the car jerks starting around 6K ~ 7.5 K. What I did was I went for those Fuel system cleaner, put it in, run the crap outa my car, like 6 K go up to 9 K , slow down back to 6K go up again, and again and again ... people on the road probably thought that Im crazy or something ...
for maybe 2-3 tanks, no more problems since. and it happened to me couple thousand miles ago, Im 28K miles now.
06-14-2007, 10:31 AM
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Mine is actually at the dealership now for the intake. The funny thing is they replaced the whole intake system but still the same problem. Mazda has my car now for about 1.5 months.
06-14-2007, 11:17 AM
#13
most of the dealerships are loaded with dumbasses. its just sad that some of us here actually know more than Mazda *trained* tech ....
Tell them to just replace the engine, cuz its the valve that got stuck, replacing the intake manifold another 10000 times wont help the problem
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