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Mazda 626 Troubles

2476 messages,  Last post on Nov 12, 2009 at 12:00 PM

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What is this discussion about? Mazda 626, Sedan

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#21 of 2476 Following up by windowphobe6 May 05, 2000 (2:26 am)
The 626 is very much like the little girl with the little curl right in the middle of her forehead; when she's good, she's very, very good, but when she's bad, you want to drown her in the dirty old river that runs by the coalyard in old Shantytown. Of Disenchanted's ten problems, I have had one - there's a bit of weeping from my valve-cover gasket. Unfortunately, these aren't the sturdiest automatics in the world, and I figure I'm probably living on borrowed time in my own '93. Certainly I wouldn't consider any of those items "ordinary maintenance". And warranty companies - but I digress. As for Brendan's tranny, well, it's hard to say how long he has before the slushbox turns to slag, but a lot of people have reported CD4E transmission failures way before 102,000 miles. Were it my car, I'd spend the $100 for a flush - there's no bottom pan, so dropping the pan isn't an option, really - and see what happens.
#22 of 2476 mazda 626 - auto trans died by kapps May 07, 2000 (4:39 pm)
There are 3 mazda 626's in my family, and we have had little trouble ('94 DX auto, '96 LX auto, and '97 LX std). Recently, the auto trans in the 96 died - locked up and would not move. No previous indication of problems (no leaks or power loss). At 66K miles the warranty was off and it was over 3 years old. I had it towed to the dealer and Mazda offered a rebuilt trans at cost. It still cost me $1000, but could have been $1750. From all the messages about auto transmissions problems, it appears that it is a weak link for 626s. I am wondering if others have seen that Mazda is helping with the cost of auto transmission problems.
#23 of 2476 Replacement policy by windowphobe6 May 07, 2000 (11:30 pm)
The thing is, the dealership isn't expected to repair automatics on site, except for things like seals and gaskets, and maybe the pump. Mazda North American Operations expects the transmission to be replaced if it's anything more complicated than that. And, more to the point, kapps and family own three Mazdas. It's definitely in Mazda's best interest to keep them happy; the company might think twice about someone who posts all over the Net that he'll never buy another Mazda, even at gunpoint. (Disclosure: I have a Web page which details some of the 626 tranny problems. God only knows what Mazda thinks of that, or what they will do when my own 626 gets towed into the dealership.)
#24 of 2476 MX-6/626 V6 Rough Idle etc... by overton May 08, 2000 (6:01 am)
I hear some of you complaining about rough idle, and then replacing the plug wires and it is fixed. Don't jump so quick as to think that has solved anything. In my 100,000 mile experience with the 2.5 V-6 I can tell you to have your valve cover gaskets replaced about every 30K miles. This engine is notorious for problems in this area. What happens is that they leak oil into the plug wells causing the wires and plugs to go bad and therefore causing rough idle. To see what I am talking about pull the plugs out one at a time and check to see if they are coated with oil, if so there is your problem. The quick fix is to replace the wires, but they will only fail after a while costing more money. The typical cost for this repair is around $400-$500, but your car will run like new. This information only applies to the V-6. Replies to this message: tinanicholas (Apr 04, 2006 1:26 pm)
#25 of 2476 Valve cover gasket by windowphobe6 May 08, 2000 (12:12 pm)
This is also true of the 2.0-liter Four; however, there's only the single bank of cylinders, so it won't cost quite so much to fix.
#26 of 2476 Rough Idle - Spark Plug Wires or Valve Cover Gaskets? by dougmckeen May 09, 2000 (4:11 pm)
I posted earlier that changing the spark plug wires fixed my rough idling. On May 7, Overton posted that it may be the Valve Cover Gaskets. Overton may well be correct. One of my plugs was quite oily when I pulled it. I haven't checked them lately, but I might on the weekend. I suppose the trade off is $60 for new wires every X?? years versus $400-500 every 30k miles (2 years for me). Are there any other problems with having bad gaskets? Doug
#27 of 2476 by overton May 10, 2000 (3:09 am)
In reponse to dougmckeen: Here are problems that I have found to be true with bad valve cover gaskets: Rough Idle, & loss of power are the main two, try to imagine your car with two less cylinders. As for keeping on replacing the wires & plugs they go bad shortly after you put them in. Best thing you can do is try and find a mechanic to give you a good deal. Bad part is that to get to the back valve cover gasket on the V-6 you have to take a whole lot of stuff apart, the last mechanic that did mine could not believe how hard it was. Chances are the price will be constant because of this, but I would definatley see a mechanic about this, and also I don't know how many miles(km) you have on your car, but it is very easy to change the timing belt while doing this procedure since the engine is apart anyways, might be worth an extra 50bucks instead of having to pay 250-300 later. If you have anymore questions you can e-mail me at Jcoskantech.net I have been through this procedure so many times, that by the 2nd time I could tell the mechanic exactly what was wrong before he even looks at the car.
#28 of 2476 driver by ilya4 May 12, 2000 (2:26 am)
auto trans died. I own 97 Mazda 626 97. There only 48k and trans is dead. While car was on a warranty I've heard some rumors about transmission problem Mazda 626 had. I dropped my car for the oil change at dealership in Vienna, VA at inquired about this problem from Service manager. He assured that he never heard about this problem, but suggested to use an innovative transmission service for about $120-130 that changed transmission fluid under the pressure (..new technology). So... my transmission is dead and I barely made to the same dealership. Their estimation is .....to replace the entire transmission at cost $2,700 + tax. Anyone experienced similar problem?
#29 of 2476 Post-flush syndrome by windowphobe6 May 12, 2000 (12:21 pm)
I rather doubt that the flush procedure, if it was done correctly, actually killed the transmission. If you have the four-cylinder 626, you have the LA4-EL transmission, which is actually Ford's CD4E, and the old drop-the-pan-and-change-the-filter transmission service doesn't work for it, since it doesn't have a bottom pan to drop; you have to do some serious disassembly to get to the filter. All the more reason to do the flush, I'd say. (I had this done on my '93, which has a different transmission, last year, with no discernible ill effects.) Still, if they botched the job, they could have done all manner of damage.
#30 of 2476 #24 of 32: MX-6/626 V6 Rough Idle etc... (overton) Sun 07 May '00 (11:01 PM) by sashton May 12, 2000 (3:04 pm)
Has anyone out the had problems with the "valve lash adjustments?" I do not know what this is, but my mechanic said that they need to be replaced. It causes a clicking noise in the engine. The mechanic says that it has been listed in the OASIS as a problem with the Mazda 626 (I have a 93 with a 2.0L L4FI). Wanted to know if this had anything to do with the valve cover gaskets or the idling problem, which I have had as well. Stephanie

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