You are here: Forums SUVs Mazda Tribute Easy way to tell IAC vs. Manif. gaskets vs. Sensors vs. Ign.Coil/Sp.Plug?

Easy way to tell IAC vs. Manif. gaskets vs. Sensors vs. Ign.Coil/Sp.Plug?

3 messages,  Last post on May 25, 2009 at 10:06 AM

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#1 of 3 Easy way to tell IAC vs. Manif. gaskets vs. Sensors vs. Ign.Coil/Sp.Plug? by brijamgel Apr 01, 2009 (8:12 pm)
I have been experiencing a rough idle for several months on my on my 2002 LX Tribute. The last time this happened (last year) I cleaned, then finally replaced the IAC valve, which worked great. Now it seems to also be more of a driveability issue- the vehicle stalls/misfires in park, neutral, and in gear with foot on brake and during low gear acceleration.   After taking it to the Mazda Dealer,they said that I need to replace the #1 and #6 ignition coils . The idle and misfiring problem I have feels very similar to when I replaced the IAC valve, which was easy and painless. The check engine light never came on either time, which surprised me. When these symptoms occur, is there a good way to rule out the IAC vs the Manifold gaskets vs Electronic Sensors vs ignition coils/spark plugs/wires? It seems like these tend to be the likely culprits.    The Mazda dealer suggested that I let them replace those 2 ignition coils (I assume there is one IC for each cylinder?) plus all 6 of the spark plugs and wires. I have 85k+ miles and bought it used at a little over 60k, so it's quite possible the plugs/wires are original.    I was quoted $575, which they reduced to $520 for parts and labor with this job. That seems pretty high to me... or am I being unrealistic? Does anyone think I should attempt it myself? I am a novice but fairly technical. I am not sure about the disassembly required for 3 of the the plugs, and I have limited tools... so I am leaning against that option.    If I decide not to try this myself, is it something any decent non-dealership mechanic worth their weight in salt could do to prevent me from sinking a half grand into it (and maybe still have the problem)? I live in the Detroit area, so I figure there are plenty of gear heads to be found in a tough economy that would be happy for the work at a better price. Replies to this message: whiskeygurl (May 13, 2009 8:09 pm) jschukraft (May 25, 2009 10:06 am)
#2 of 3 Re: Easy way to tell IAC vs. Manif. gaskets vs. Sensors vs. Ign.Coil/Sp.Plug? [brijamgel] by whiskeygurl May 13, 2009 (8:09 pm)
Replying to: brijamgel (Apr 01, 2009 8:12 pm) Ok so I have had the same problems with my 01 tribute I actually changed the plugs and coils myself which was easy once you got to them not too bad of an ordeal compared to the price of labor at Mazda. But the problem in my vehicle was not the coils I did have to replace the plugs though due to them being misfired on. The problem lied in the connectors which clip into the coil. They were only $30 each compared to the $180 for the coil Replies to this message: jschukraft (May 25, 2009 10:06 am)
#3 of 3 Re: Easy way to tell IAC vs. Manif. gaskets vs. Sensors vs. Ign.Coil/Sp.Plug? [whiskeygurl] by jschukraft May 25, 2009 (10:06 am)
Replying to: whiskeygurl (May 13, 2009 8:09 pm) Whiskeygurl - thanks for the info. Having similar problems with my 01 Tribute. Have replaced the spark plugs with no improvement and am wondering if I should try those connectors that you mentioned that clip into the coil before going to the expense of replacing the coils. Can you give me some more details, please? Are the clip connectors between the coil and plug? Where did you by the parts? Do you by any chance have a part number? Thanks in advance for any help you can offer.

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