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Mazda 626 Troubles

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  • The 2.0 is not an interference engine. (I've had two of them.) Gates, which used to claim otherwise in their Web belt-replacement guide, has now fixed the error.

    Transmission cooling is generally marginal on these cars; they're much happier with an aftermarket cooler plumbed into the lines.
  • Thanks for responding,
    Since my last post I have done more research and , yes the 2,0 is not an interference engine so I intend to just run the car until I can get rid of it..Not going to put anything into it if I don't have to...Although it has been a pretty good car it is still a pontential disaster..Now the rear drivers side door won't unlock and I have a slight vibration around 45 mph..I replaced both axels last year and new tires..The tires are wearing perfectly and there is no sign of unbalance or out of alignment..Although the tranny appears to be working well I suspect the vibration may be transmission related..??? I can feel it but no one else seems to be able to sense it..It seems to disappear around 55 ~ 60 and then when I let off the gas and re-accelerate there is a roughness there ..Slight~ almost like it was a slightly leaky exhaust...Frustrating..!!!
  • 2000 mazda 626 v-6 overheating problems.im seeing that it seems this car has a problem with the overflow jug.im wondering if there is a solution to fix this once an for all.the car has had 3 new overflow jugs installed.please email me at gcrow85@live.com if you know the final solution to this problem
  • p100p100 Posts: 1,116
    I had my share of issues with the coolant overflow bottle, but there are other reasons for overheating. I had one of the fan motors (the A/C condenser cooling fan) go out twice in the last 11 years. Without both fans operating and A/C on, the engine can overheat. Check and make sure that both fans are operating when A/C is on.

    Also, I had a problem with the original radiator at around 200k miles mark. It was seeping coolant right through the upper neck, but the cracks were microscopic. However, I was losing coolant at the rate of about 1 quart a week. I installed a new radiator, and never had this problem again. The car has 276, 000 miles on it now.
  • p100p100 Posts: 1,116
    Are you loosening the center bolt on that idler pulley before tightening the tensioner bolt? Those idler pulley bearings typically last only about 80-100k miles. I have had to replace at least three sets on my car to date. You can either buy a new bearing and press the old one of and press a new one in, or buy a complete pulley with the bearing. Pressing out and pressing in a bearing on these is tricky and you must properly support the pulley and use a hydraulic press to do the job right.
  • skykingdumb1skykingdumb1 Posts: 6
    edited January 2011
    This car runs good for about 1/2 hr, then quits. Has new fuel pump,sock and cleaned tank. Won't start again for about an hr. Thought prob was CPS, but it has been suggested that it doesn't have one. Any other suggestions will be appreciated . thanks
  • I am having the same problem. I put on new bosch spark plugs, new spark plugs wires and new distributor but the problem did not go away. It only does it when its warm outside and I have to wait at least 20-40 mins before it can start back up. I don't know what is causing this.
  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 44,872
    Possibly a bad fuel pressure regulator. You should test fuel pressure in the fuel rail and see if it bleeds down too much.

    MODERATOR

  • gutpokergutpoker Posts: 1
    My car has been idling bad for awhile now, and after reading a lot of posts, I preceded checking the following: Funtion of air control and throttle body, both seem to be fine, but cleaned anyway. I have pulled injectors and checked seals, checked spark plugs and wires by disconnecting each one in turn, I checked all vacuum lines and found none bad. I feel it to be a vacuum leak because if I spray cleaner around the injectors and valve cover gasket the engine idle noticably changes. Any ideas before I spend a ton at dealership?
  • own3626sown3626s Posts: 2
    Not sure about the V6's but I had 2 4cyl that did the same thing and found the distributor to be bad. The module is not likley replacable, may need to replace the entire distributor.
  • own3626sown3626s Posts: 2
    Hey gang, I have a 1996 626 4 cyl 2.0.
    No check engine light, when it gets warm it stumbles, sometimes really bad and sometimes not as bad, yet under full accelleration it does't stumble and runs out. When it's cold it acts normal. Any idea's? I am going to replace the fuel filter but to me that shouldnt be the problem. Spark plug fouled? Sensor??

    Thanks in advance!!
  • p100p100 Posts: 1,116
    You could have leaky valve cover gasket, causing oil to seep into the plug wells and contaminating plug boots, causing a misfire. Another possibility is one or more bad plug wires. Typically you will see missing with a hot engine on light acceleration when you have a bad plug wire(s). You could also have a vacuum leak. Check to make sure all vacuum hoses are connected properly.
  • Driven this car for 6 months no problems. Today drove to a friends, car sat for about 5 hrs., during this time in rained and hailed hard with my windows partially down. My car was drenched, even had water in the cup holders in the middle. Well when leaving I got about ten minutes down the road and my car stalled and I coasted over to a stop. Long story short, unknown help came along and said because he couldnt hear my fuel pump hum when turning the key on that he thinks it is the fuel pump. Is this possible? Car turn over real strong but just wont start! HELP PLEASE!!!!
  • I think you need to check Air Idle control valve and clean a throttle body. May be Idle RPM needed to be adjusted.
  • pchasepchase Posts: 1
    ive replaced clutch, pressure plate, throw out bearing, master cylinder, and slave cylinder, now when i try to shift gears my clutch stays on floor and wont shift, like my clutch isnt disengaging, reverse is the worst wont come out of reverse until i pop clutch let car die, then i can get it in netural and restart. Any ideals im going crazy
  • its my first car i dont know much about cars either. it over heats in just a few minutes and blows out a lot of exhaust. there is rust on the radiator and it looks like it had some sort of oil leak in the past. i had the thermostat replaced and its still having the same problem and i noticed water leaking from what looks like the water pump. my friend is saying it maybe a blown head gasket. im just wondering if the car is worth fixing, im not really sure what to do its my first car...
  • Hopefully you have your issues taken care of by now. The 02 sensor will also come on if the wires to it are not connected. Since you cut and splice the wires when you change the sensor - double check your splices. I replaced my sensors at about 90000 miles, am at 150000 now. No problems.

    If the sound from the back end you hear is ticka-ticka-ticka-ticka-ticka and it occurs sporadically for only about the first five minutes - it's some valve related to the fuel/vapor ... something. There's a TSB for that. They'll install a rubber mount. If it's more of a clunk-a-lunk over bumps - mine does that too - don't know what it is, maybe brake pads.

    Yes, the coolant reservoir gets holes in it, I'm on my third one (also a 1998). As for overheating - make sure that the pressure cap is on the *reservoir*, not on the engine (I am used to seeing the other way around).

    There's also a TSB for hesitation - they'll reprogram the fuel delivery for that.
  • No.. These cars are not worth repairing.. They are junk... try to find a used Honda or Toyota.. :lemon: :sick: :sick: :lemon:
  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 44,872
    No I don't think it's worth fixing unless you want to take it apart just as a hobby.

    MODERATOR

  • skibry1skibry1 Posts: 174
    Our first new car is still running well. The ticka-ticka from the rear end still happens,occasionaly with no preformance issues. The clunka-clunka,aka Gremlins in the trunk,which was there from dealer lot departure has since departed!?! Afroman707 if yours is a 3pedal variety it might be worth saving but if it's an automatic,many tranny issues ahead. Love our left-leg-flexor and at 28-31 mpg have had eleven years of fun.
    Contemplate falling white crystalline matter!!!!
  • Good ignition wires are vital on these engines and I found only one brand that works well... NGK... so don't waste your time and $ as I did on other so-called premium wires on your Mazda because they just don't work right, causing power-robbing misfires and stall-outs at low RPMs. Secondly, after owning 2 nearly identical Mazda 626 LX V6 manual cars (1998 and 2000 models) with similar ongoing starting troubles and failed batteries, replacing the starter cured all. For under $100 at the wreckers you can get a good starter (surprisingly easy to install once you get the air intake unit out of the way for access). A good starter cranks the car over much faster and draws far less current from the battery. Before finding the solution to be the starter, both my car's engines cranked over slower when starting and strained the battery. The original starter in the 2000 626 that I drive now finally failed to the point that even a boost would not crank the starter, yet I knew the car was good because a slow roll and popping the clutch in gear with the key "on" got it started easily. Mechanics and parts stores alike gave me the run-around with crap such as my car needing the most expensive premium battery with max cranking amps and/or a higher output alternator (such BS). 3 batteries later I finally found the culprit to be the starter and fortunately a good one from the wreckers was the solution.
  • Rattles and cluncks in the rear supension is probably due the the bushings on each side of the rear stabilizer bar. The rubber bushings get hard and shink with age, making an irritating rattle with every bump or ripple the car drives over. New bushings will cure the noise but a simple solution that might stop the noise for quite some time is to take Vise Grips and squeeze the metal clamps that hold the bushings against the stabilizer bar (hangs low in front of the rear axel). My mechanic simply squashed the clamps so the bushings have less gap to rattle and greatly reduced the noise!
  • I have 2 Mazdas---a 1995 Mazda 626 (I-4 5-Sp) (now-140K miles-bought used in early 2002) and a 1997 626 (I-4 5-spd) (now-190K miles-bought used in 2008). Both WHITE LX models.

    I always tend to pay cash for my cars--no notes/loans/comp Insurance, etc.

    I have put about $10,000 into these 2 cars (including their purchase) over a decade.

    Includes 2 pretty involved accidents for the '95 -a new clutch (complete) and a new tranny.

    I need to put another $3000-$4000 in them for 2012, to keep in good shape. (Struts, Alignment, windshield, tires, body work, timing belt & tensioner, etc, ..and water pump.
    ( I'm definitely in the --Water Pump Better done at Timing belt replacement -camp)
    Thus about 12,000/10 = $1200 a year ( for 2 cars) . Not bad.

    Even at $16,000/11 yrs= $1450 a year (2 cars) My MD Brother (ie. CLICK of the Magliozza Bros.) sez "Buy new" ( Yes,... he of the ..I'll never buy a VW again! (He bought New).) I am of the other view--CLACK.

    For example--"What would a $17,000 NEW CAR in 2002 be worth today"?? (And how much would I really have spent on it over 10 years ?)

    The 1995 626 came home from it's Midwest college 2 weeks ago. ( My College Senior son got the 2003 Passat hand me down-via the MD Uncle--his former personal Money Pit car )

    The 1997 626 heads to the same college this coming Fall with the next Freshman student.

    Mostly, the 626's sit in Dorm parking lots/ Apt complexes and commute a few miles to school, and back to home occasionally. (For Repairs, cash, food, and Laundry--usually)
    About 10,000 total miles each year.
    Insurance is zilch (no comprehensive carried), as are taxes, Plates, etc.

    The 626's have been well maintained (a good reasonable private mechanic). Both get 26/35 + MPG. Both still drive well. (New struts, etc will improve this)

    Due to job changes and the economy, I don't travel as much. Only drive 10k-18k a year. (2011 IRS guideline is 50 cents /mile) I also have more time to tinker, change oil myself, new brake shoes, rotate tires, talk cars with the neighbor, etc.
    I also like driving these damnable cheap, paid for, gas -sipping, Zippy little cars 5-speed cars!
    The sun roof in the 97 is great!

    My daily driver is a V-6 Chrysler LHS. (130K miles) Good shape. I Like the car. 18-28 MPG. A cruiser! I'm ready to park the LHS ....and drive the '95 626.

    My Office has a tree lined (sap) , asphalt (hot) parking lot where my car sits in the sun/ snow /thunderstorms/ etc--most of 2-4 days a week. The other day(s) I spend on the road.
    My Attorney peers tend to drive more expensive, shiny cars-- but I'm more like a hobbit, " filling the corners of my 'round stomach".

    I make money most years from billing my mileage ---to easily cover the cost (or via deductions) of the two Mazda's and the LHS.

    The "Click & Clack" acid question is thus: Do you put money into "Older cars" (a/k/a the Money Pit ) to keep them going...or would you prefer to buy a GERMAN Passat with a bad oil pump, sludge, engine failures, re-calls, $$$$ for re-built engines, High Insurance, Loans, etc ??

    In other words---Are Mazda owners just "tinker" type people (Hobbits) who have a frugal personality... and the car is just a logical extension of this quirk of personality ???

    I have been struck by the generosity of the people on these forums--especially those who slap wrenches for a living. They give away tips and advice more freely ....than Old Pete Seeger, gave away songs.

    Impressive bunch of folks, you are !

    Philosophical comments are welcomed.!
  • Iv just bought a 98 Mazda 626, v6, auto trans, and while driving it loses power sometimes, occasionally when it does this it acts like its missing or starving for fuel. Iv had the fuel pump, fuel filter, plugs, and throttle position sensor(used) replaced. and it hasnt helped. There is a gap in the plastic box were air filter goes my boyfriend thinks that could be one posiblilty or the knock sensor. Anybody have similar issues or ideas that can fix this problem? thank you
  • p100p100 Posts: 1,116
    Bad plug wires can cause occasional miss, typically on light acceleration, which may be confused with fuel delivery problems. These V6 engines require plug wire replacement about every 100K miles. You can get a set of OEM plug wires from rockauto.com for about $ 75. What goes bad on the plug wires are the long boots that deteriorate from heat.

    Also, you should use premium gas in this car. It gets much better mileage (10% better than with 87 octane) and performs better.
  • Hey fellow Mazda owners,

    Recently my 2002 Mazda had to go the shop for repairs. It has over 150 miles, so I'm used to taking it in once a year for something.

    Over the past year there has been an increasing squeal coming from the engine and I knew something (compressor/water pump/steering pump) was about to go...well it finally did and the belt along with it.

    I took it to a local repair shop and they told me that the timing belt and water pump needed to be replaced, so I consented.

    After the repairs, it ran great for two days and then I began to hear a very low rattle/tapping noise that incrementally got worse over about a two period. I called the shop, took it back, they said that most likely the water pump was bad out of the box...after investigation it was not bad...then they said it was the tensioner...they replaced that and the problem actually got worse.

    Now, while idling it just has a loud clicking/knocking noise that seems to come from either the power steering pump or some other place directly in front of the engine. Keep in mind, it runs fine, just makes noise.

    When I took it back today and complained about it, their 27 year veteran mechanic said he had never heard the noise before but would tear it down and make it right.

    Does anyone have a similar experience...or can you shed some light on the nature of the problem?

    Extremely frustrated,
    Shazzard
  • about the "gremlins in the trunk", if you are sure its in the trunk, then idk. but if its in the front, my boots around the CV axle tore open and all the grease came out, so it made the joints creak as I took corners. because it already ruined the joint, I had to replace the axles on the front end. i recommend checking the boots and replace them when they are cracked which are like 20 bucks if you do it urself but 1 axle is about 90 bucks...
  • p100p100 Posts: 1,116
    edited May 2012
    I replaced both my alternator and starter preventively at 250k miles. The originals still worked perfectly, but I was worried that they would eventually fail leaving me stranded. I got rebuilt units form the local Mazda dealer and they have worked great now for over 83k miles. The cost was very reasonable - less than $ 200 for both with my discount. I would not recommend buying used starters or alternators from a junk yard. Rebuilt units sold by Mazda dealers are rebuilt to a higher standard than most other cheaper units form Auto Zone or Discount Auto parts. This means the rebuilders replace nearly all internal components, reusing only the outer case.
  • mazda626atxmazda626atx Posts: 227
    Hi Guys,
    Its been a long trouble free time since my last post here. My wifes 94 626 LXA ATX Air Bag started lighting up last night. It flashes then stops then flashes again. Never stays on solidly.
    Car has 88K miles on it and is in Athens Greece.
    Have the Haynes manual for mazda 626 and Mx 6 and Ford Probe and it shows location of sensor on the tranny tunnel on 95 and later cars, and under the dashborad on earlier models.

    Says not to touch the SRS system bring to a professional. Not going to find one here. Any ideas ?
    Thanks
    Peter
  • I am considering purchasing a 1993 mazda 626 LX with 72,000 miles on it. The airback light and the HOLD button on panel is flashing, it shifts hard in 1st gear. The current owner had it to a transmission man and he said may be a bit of dirt causing the problem. With everything I have read, it sounds like the transmission may be bad. Other than that, the car runs great and looks great. Has anyone else had this problem? Help please!
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