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Sedans Mazda 626 Mazda 626 Troubles
2476 messages, Last post on Nov 12, 2009 at 12:00 PM
You are in the Mazda 626 Forum. Your Hosts are pat & karens
| I have a 1997 Mazda 626 LX 2.0. Can't get it to pass the emission test. Code PO421 comes up and don't know what it means? Had Code PO133 on the test , but it's not coming up anymore after changing both o2 sensors,spark plugs,new spark plugs wiring. Can you tell me what Code PO421 is? | |
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Replying to: gracefully (Aug 02, 2008 10:45 am) Good luck. |
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I have a 1990 Mazda 626 (still). Whenever I turn on the A/C or turn the steering wheel, 1. the "charge" light and "rear" light come on. 2. Power steering is lost. After I cleaned the battery terminal, this problem only exist when I turn the steering wheel. I get 12V when the engine is off and 13.3V when the engine is on. I've taken the battery and alternator out of the car and had them tested at AutoZone. They are both good. Thanks in advance. |
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Replying to: gyates (Jul 10, 2008 10:45 am) Good luck.
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Replying to: kellij2 (Jul 28, 2008 8:14 am) |
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I have a 626 Mazda and it runs fine been driving it a year and the other day it started jerking as i was on the freeway seems like it was the transmission the overdrive light keep coming on even though it was off.i can get up to 90 and it will run good and all of a sudden it will start again and i lose RPMs and it jerks could someone please help me.
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| My Mazda started jerking the other day felt like the transmission the over drive light came on allthough i keep it off please help me. | |
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Replying to: parnell1234 (Sep 11, 2008 11:57 pm) One quick question: Does the O/D light "Flash" when on extended highway trips? If it does, you might have a "known" Mazda Service Issue. I have a 1998 Mazda 626 4 Cyl Automatic and for some reason if I am Driving at 70 mph and let off the gas pedal my O/D Light Flashes and continues to do so until I stop and turn off the car, let it cool for about 10 minutes and then restart it again. However while I am driving with the O/D light flashing (at lower speeds) I experience very hard switching in gears. After a full stop, when I start up again the transmission will shift into second with a bang then into third with a milder thump. However this does not happen every time I drive 70 mph (Usually after an hour of highway driving.) I spoke with a guy who rebuilds these transmissions. He said that when the O/D light "flashes", it is caused by a malfunction within the computer or a minor defect in the transmission. When the light goes on, it enters a Fail-Safe mode… (the EPC solenoid opens up and brings line pressure up to 'max') ... the only catch is it raises the fluid pressure well beyond normal specs (it goes from 100 to 400 PSI). It is at this time where you get your major failures. (Mazda switched the Automatic 626 to OBD II around the 1996 model year, so if you have a '96 or later, you'll need a full-fledged OBD II-compatible scan tool.) A Mazda Technical Service Bulletin exists for some 1999-2001 models. TSB 05-005/02 deals with one specific circumstance: "After extended highway driving, the O/D off light is blinking and code P1783 is set (excessive ATF temperature). Occasionally there will be overflow through the dipstick tube and harsh shifting. Mazda's recommended fix is to replace the radiator and to install an auxiliary cooler for the transmission." It sure can not hurt to tell your mechanic to examine the Mazda Technical Service Bulletin 05-005/02. Keep in mind that once your car goes in safe mode, your transmission fluid will get burnt up real fast. A transmission cooler cost about 40-50 bucks, and will extend the life of the poorly designed Mazda/Ford transmission. You will need to replace your transmission fluid during the install (if burnt) and read the directions on the cooler to adapt for any additional fluid. Search on the internet for a Hayden Transmission Cooler, either Hayden 404 or Hayden 679... I prefer Hayden 404 because it has bigger piping than the 679 which doesn't restrict tranny fluid flow (Some use B&M Super Coolers). Some people also recommend going with a synthetic transmission fluid (Supertech 2000 synthetic fluid for cheaper alternative). Some people have also claimed that by using Honda's transmission fluid (Dexron I instead of Mazda's Dexron III). The thicker Honda Fluid w/ Honda's special additives have caused a rebirth to their Mazda transmissions. You can also consider installing a Tranny Temp Gauge so that you can see the difference the cooler makes (and know when to stop prior to an transmission overheat.) I would recommend printing out this and showing it to a trusted mechanic. |
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hello sorry for my English as I live in Russia and badly I speak english I own the MAZDA 626 GF 2000year. 2,5 V6 car a super on mechanical transmission that at you a rarity has arisen a problem  )) I will be short. It is necessary for me buy a tank broad KLG4-15-350C who every body to help, I have found already there where to conveniently my friend to buy TOMS RIVER MAZDA HIGHWAY 37 EAST TOMS RIVER, NJ 08754 Phone: whether 732-341-2900 it is necessary to learn there is there this detail and how many costs? In advance all thanks |
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