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Sedans Mazda Protege Mazda Protege Maintenance and Repair
3600 messages, Last post on Nov 28, 2009 at 3:21 PM
You are in the Mazda Protege Forum. Your Hosts are pat & karens
| I would like to know if someone here could tell me how to change a speed sensor on a mazda 2001. pictures would be great thanks STEVE | |
| Ok I'm really new to this but hope it works. My husband has a 1993 Mazda Protege and he ran it severly hot to the point where it shut down. The heads are not cracked but the engine now just turns over. We can not afford a new car so I am hoping someone here may be able to tell us what is wrong with it. | |
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Replying to: helpme101 (Aug 25, 2009 11:03 am) Do you mean the motor is running but the car does not move? If it does move, I suggest you head to your local mechanic. On the other hand, it's almost 17 years old so it may be time ...
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Replying to: autonomous (Aug 26, 2009 12:26 pm)
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Replying to: autonomous (Aug 26, 2009 12:26 pm) The first thing I'd do is run a compression test. Blown head gasket and/or warped head is a good possibility. You can also look for sign of coolant from the tailpipe, oil in the coolant, or bubbles/churning in the radiator when the engine is cranked. If the engine got really hot it could have damaged sensors and/or sensor cables. I've seen the crank position sensor cable melted by an overheated engine. I recently replaced a blown head gasket on a mazda that overheated. Don't be fooled by thinking a head gasket is only $60. The repair cost me about $600, and I did all the labor myself. Overheating can do a lot of damage. I had to replace the radiator, the crank position sensor, top end gasket set, and head bolts. With the engine apart it made sense to replace the timing belt, water pump, both serpentine belts, and radiator hoses. The guys at clubprotege.com and themazdaforum.com can be helpful. You'll need to provide good information, not just say "please help". Like, how do you know the head isn't cracked? What exactly happened? Have you done any tests? Do you have the mechanical skills to troubleshoot and repair? Don't be offended, but folks will respond better to good solid information than desperate pleas. |
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Replying to: helpme101 (Aug 26, 2009 12:32 pm) |
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i need some advise , our 2001 Es has 108,000miles yesterday it just died , we were able to restart it but it would staul out , after running it for a while keeping my foot on the gas slightly it would now stay running but idles low . the engine light came on and is still on . we dont want to use it because we dont want to get stuck on the road , we havent had any problems until now we purchased it new . any thoughts ? thanks
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Hi, I have a 97 mazda protege and recently i started having issues where the idle is very high. started with 1500 rpms and now its at 3000. Just wondering if anyone else had the same issue with this car and how did it get resolved. Thanks
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Replying to: chump2 (Aug 31, 2009 1:50 am) |
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Replying to: waldoownz1981 (Sep 07, 2009 9:54 am) - The ECU is receiving a bad input, or - The ECU is unable to control something it needs to control Common problems with inputs - The Mass Air Flow sensor carefully measures the amount of air flowing into your engine and provides that information to the ECU. The ECU then meters the appropriate amount of fuel to the engine. Two issues can occur leading to incorrect MAF signal to the ECU -- Dirty MAF. A thin wire inside the sensor sometimes gets dirty. It can be cleaned by spraying brake cleaner or electrical cleaner on the wire. Don't touch the wire with anything (not even a q-tip) or you'll break it. -- Vacuum leak. A vacuum leak lets excess air into the intake that the ECU doesn't know about. Any vacuum leak will do it, but particularly inspect the large accordion-like pipe between the air cleaner and the engine intake. Cracks sometimes develop in the grooves, and cause air leaks. - Bad coolant temperature signal. If the coolant temperature signal is wrong, the ECU will incorrectly adjust for temperature. I don't have any diagnostics for this. On the output side - Sticky Idle Air Control Valve. Can be removed and cleaned. - Sticky EGR Valve. Can be removed and cleaned. There are other possible causes, but these are common.
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