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Mazda MPV Electrical System/Lights

37 messages,  Last post on Dec 04, 2009 at 8:32 PM

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#28 of 37 Re: My MPV 2003 - Coils? [tcc21] by jipster May 20, 2009 (10:12 am)
Replying to: tcc21 (May 18, 2009 8:50 pm) You probably need to go ahead and replace #4 coil. You don't want to be out in a heavy downpour, or on a trip, and have it start acting up. It's easy to replace 4,5 and 6 coils.   Many of the people who use to post here are long gone now due to selling off these puppies!   A lot joined the MPV Club and still own their MPV's.
#29 of 37 engine light on by jag09 Jun 10, 2009 (3:10 pm)
i have mpv 2004. after gas near empty light was on and i fill up its tank but after driving about 3-4 kms the engine check light came on, i checked the fuel cap and retightened it . but it still stays on, checked the engine oil found on min. level . Any one know what can go wrong, has there any shop in canada which do free scan, thanks
#30 of 37 Re: My MPV 2003 - Coils? [tcc21] by itsmylastmpv Jun 15, 2009 (8:21 am)
Replying to: tcc21 (May 18, 2009 8:50 pm) SAME PROBLEM!!! The dealer acts as if I am crazy. I ended up changing out the #4 plug/coil. I've had several quirky issues with this MPV, which will be my last. There is an electrical problem with my MPV and now I suspect that it is common among the 2003-2004 model years. Now, my A/C is draining the life out of my second battery in 5 years. I feel as if I am treating symptoms because Mazda and its service providers cannot figure out the actual cause.   I'm selling as soon as this latest issue is resolved.
#31 of 37 Re: Help! Lights, electrical, harness, insurance issues! [aegsm76] by minichrt Jul 04, 2009 (7:22 pm)
Replying to: aegsm76 (Jan 04, 2008 7:38 am) We have the exact same issue with our 2001 MPV how was your issue resolved? The dealer wanted 3000 to fix ours as well. This certainly should have been a recall as a major safety issue.
#32 of 37 Re: ignition system [engtech] by buzzk Oct 11, 2009 (4:10 pm)
Replying to: engtech (Aug 11, 2008 10:43 am) We had the [sometimes dramatic!] 'bucking" problem, also called "rough shiftting," when our 2004 MPV was about -or less than- a year old; we were told somewhere, I can't remember exactly, [but NOT by Mazda!], that it was a software problem & the dealers had a "software fix" that would work; We took it to the local dealer, who knew about it, and told us they installed that "software fix" & it generally has worked well since then. A little later, we also had them put in a new, supposedly very sophisticaed synthetic trannie fluid from BG. can't say that it's done anything we notice, but the tranny works well so far & their claims *sound* impressive. In the past I've used one of their products for manual trannies I thought was very impressive. the autotranny fluid is, however, fairly expensive.. anyway, the software fix really should work, try it & let us know, OK?.   cheers, BK
#33 of 37 All Dashboard warning lights are on by mitch65 Nov 11, 2009 (2:54 pm)
After my mechanic fixed a couple of things related to a check engine light, some sensor problem I believe, all the warning lights on the dash stay on continuously now. He said it was probably that the computer needed to be reset and said it would probably be $100 to have Mazda do it. Does this sound right? Anyway I can do something about it myself? Is it fuse related? It's a 2002 MPV LX, original owner, about 70k miles. Thanks!
#34 of 37 Cant get answers anywhere. by mailsom Nov 17, 2009 (5:45 am)
Hi New to this too. Got a Mazda MPV 2003, 2ltr Deisel. Have had since 04. Problems. Electrics, driver window stuck down, had motor ,regulator and control unit replaced window now fine £700 later. However cental locking system had been playing up before this , key fob no longer works despite battery change, F passenger door lock dodgy, alarm goes off 90% of time on unlocking front doors, is only fine from rear. Mechanic had reckoned control unit replacement would possibly help but it didn't. Any ideas? Also excessive engine oil usage ,1 ltr per week approx. alot of smoke discharge from exhaust white and black on starting& acceleration. This despite oil & filter changes and additives to oil and fuel. No leak. ?
#35 of 37 2005 mazda mpv idle problems by vclsmith Nov 22, 2009 (2:12 pm)
My Mazda is idleing very high when started. RPM is up to 1.5 and will not idle down at all. Did anyone have this proble before?
#36 of 37 2004 Mazda MPV issues by shopdog97 Dec 04, 2009 (7:55 am)
I see some of the above commentary and wonder if these problems with this model is what is causing the same thing in a friend's MPV. She is a great lady from our church who has had to replace at least 3 coil packs recently. She just spent over $700 in the last month alone on what I believe to be electrical issues. She was on her way to her mother's home in North Carolina for Thanksgiving when the van just started going haywire. The engine light came on and a 3 hour trip took nearly 5 hours because she said she lost power and when she gave it gas it felt like it was going to shut down on her. She finally got there and took it to a garage where they did 3 or 4 hundred bucks work of whatever(I didn't see her bills from either garage, the one before and this one, so I don't really know ALL they did) Well, I think she said it was another coil pack, #5 this time. Now that was a little over a week ago, and she called me this morning and told me that the trouble has returned exactly the same way as she was taking her young son to an appointment. I have an OBD2 scanner and offered to scan the computer for her and go from there. This thing sound nightmarish to me! Why does this van seem to have a lot of trouble with coil packs? Seems to me there has to be an underlying electrical issue at play here. I asked her to call a friend of mine in the service dept. of our local Mazda dealership and see if there were any service bulletins issues about this problem. If anyone can steer me in the right direction here, I'd deeply appreciate it, and I hope you all have a joyous Holiday Season!! Replies to this message: jipster (Dec 04, 2009 8:32 pm)
#37 of 37 Re: 2004 Mazda MPV issues [shopdog97] by jipster Dec 04, 2009 (8:32 pm)
Replying to: shopdog97 (Dec 04, 2009 7:55 am) The 2004 MPV doesn't have coil packs. They have individual coils for each spark plug. The #5 is in the front and should have been very easy to replace... 5 minutes. The 1-3 coils are on the back of engine and require an hour and a half of labor. The coils are problematic, and as such I wouldhave your friend ask Mazda replacement under "goodwill". A poor design allows water to foul the coil. I had a coil go bad after running through a large water puddle during a downpour. Even though I was 4 k miles out of warranty, Mazda replaced under goodwill. You might also want to check the PCV hose, as there has been widespread problems with it as well... similar symptoms. I read a step by step "how to do a full coil replacement" on the MPVclub web site, if you're fairly handy it is something you could do and save your friend some big money.

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