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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

What is this discussion about? Mazda 626, Sedan





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#2235 of 2476
1994 mazda 626 by fl_beauty
Dec 15, 2006 (2:19 pm)
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Replying to: bnormann (Mar 24, 2000 5:25 pm)

I bought my car about 6 months ago.It worked fine untill about 5 days ago.It would cut out when I was doing any where from 40-60 mph then it would decelerate to about 20-30 mph...I even had to pull off the road. Or when I would stop at a stop light my car would die, so i would crank it up. even though it struggled to start back up on the second time it finally worked. So I was driving it to school yesterday ,and i t was fine until I went to pull in the parking spot.Then, it died.It struggled again to restart but it finally worked.Two hours later i went to crank my car and it would not crank at all.
has anyone else had this problem???? If so can u please tell me what it might be..because I am so concerned
thanks,
amber
 
#2236 of 2476
timing belt concern... by buck17
Dec 20, 2006 (12:05 pm)
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I have a '97 626 ES and I recently took it into the mechanic to have the timing belt replaced. He replaced the belt and showed me where the spring had broken so he replaced that also. I had it back for 1 day and suddenly it dropped to 750 rpms, began sputtering, jerking and smoking. I stopped and when I got out I could see that the exhaust system was glowing red hot from the manifold to the rear wheels. Took it back to the mechanic who says the diagnostic says its the crank sensor. He then says crank sensor appears to be fine but a screen on the sensor has some bent and broken teeth . He is telling me I must have run over something for the teeth to be bent and broken. I know I didn't run over anything after the timing belt was fixed yesterday...could these teeth have been bent before and suddenly became a problem or did the car skip time for some reason and damage these teeth? I don't want to pay him to fix this because he did a bad job with the timing belt....
#2237 of 2476
Re: timing belt concern... [buck17] by p100
Dec 22, 2006 (9:47 am)
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Replying to: buck17 (Dec 20, 2006 12:05 pm)

Get a new mechanic! I am almost certain that he is the one who damaged/broke the teeth on the crankshaft sensor pickup wheel. The pickup wheel is mounted ont he back of the harmonic balancer (damper). The damper assembly must be removed to change the timing belt. One needs to use a special harmonic balancer bolt on puller to remove it. If a regular gear puller is used, it will very likely damage the sensor wheel because it will grab the wheel and pull against it. The sensor wheel is a part of the harmonic balancer assembly. The crankshaft sensor by itself is just a magnet with a wire and not expensive the replace. But the harmonic balancer is, and it is most likely a dealer only item.
 
So in summary, you did not run over anything to damage the sensor wheel teeth. That would be about impossible! Your "mechanic" is the most likely suspect here for the reasons I just mentioned. I cannot say with absolute certainlty if the pickup wheel is replaceable by itself, but I do not think so. Looks like you will need a new harmonic balancer assembly.
 
Note: I replaced the timing belt on my Mazda before and the factory shop manual has a specific warning in it about using a proper harmonic balancer puller in order not to damage the crankshaft sensor wheel teeth.
#2238 of 2476
Engine Shuddering by randylar
Dec 27, 2006 (4:17 pm)
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I have a 1990 Mazda 626 with a 2.2l 5 sp manual trans
I found my way here looking for any answers to my problem I'll explain.
My car shudders/stutters when a starting out and trying to maintain a constant speed. It "shudders" in all gears while maintaining a constant speed; say 30mph . It is more noticeable in a lower gear and RPM. It completely stops above 3,000 rpm in all gears. I had it checked and it's not the clutch or transmission .I was going to check the fuel filter but am looking for more ideas.
#2239 of 2476
Re: Engine Shuddering [randylar] by p100
Dec 27, 2006 (8:58 pm)
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Replying to: randylar (Dec 27, 2006 4:17 pm)

When was the last time the plug wires were replaced? Plugs? who replaced the spark plugs? It is possible that the porcelain insulators on the plugs are cracked, causing a miss.
#2240 of 2476
Engine shuddering by randylar
Dec 28, 2006 (3:34 pm)
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A general tuneup fixed the issue. Plug wires were bad. I did learn something though. I hadn't known that some Ford Probe parts were interchangeable.I thank the forum for the info. Is there a way to get a list of parts that are the same?
#2241 of 2476
Re: timing belt concern... [p100] by skibry1
Dec 28, 2006 (3:51 pm)
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Replying to: p100 (Dec 22, 2006 9:47 am)

How many miles did you run that oem? Did you replace with like?
#2242 of 2476
Re: Starting Problem [jhob] by lexie4
Dec 28, 2006 (7:14 pm)
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Replying to: jhob (Jul 20, 2000 2:37 pm)

i am having same prob now, if u find a solution please let me know ty kindly
#2243 of 2476
Re: timing belt concern... [p100] by buck17
Dec 29, 2006 (5:56 am)
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Replying to: p100 (Dec 22, 2006 9:47 am)

I knew it! Thank you for verifying that for me. We had to wait a week but we got the part (finally). The mechanic did it for free (what?!). I am so glad to know what actually happened.
#2244 of 2476
Taillight and dashboard light problem on a '97 626.. by ka1975
Dec 31, 2006 (6:25 pm)
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I have a 1997 Mazda 626LX which has been problem-free for a long time. About a couple months ago, the dashboard lights started to shut down every time I used the left turn signal. Now the dashboard lights will not turn on at all, and my taillights are not working either. (Interestingly the headlights and all three brakelights are working perfectly. Upon examining the wiring diagrams in the Haynes manual, I realized that they were completely separate circuits)
 
Because of the earlier problem with the turn signal, I am guessing that the switch might be faulty. I did some research online, and many others reported similar problems with their Mazdas where their taillights and dashboard lights would stop working. Any ideas what the reason might be?

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