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Sedans Mazda Protege Mazda Protege5 Maintenance and Repair
1380 messages, Last post on Nov 23, 2009 at 10:41 AM
You are in the Mazda Protege Forum. Your Hosts are pat & karens
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Replying to: davidingilbert (Oct 28, 2008 6:15 pm) Agreed, they can be useful for finding parts. Which goes to prove that one person's junk is another's treasure. 
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The shop finally located a Mazda fuel tank for my car. It is now repaired and back on the road. FYI for other PR5 owners: The gasket/seal between the fuel tank and fuel pump on my car failed due to rust and age. A hairline crack also developed in the top of the fuel pump. The shop replaced the gasket and fuel tank. They repaired the fuel pump. I am sharing this information because I was unable to find anyone else who had the same malfunction in their PR5. I hope this can help another owner.
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Replying to: glennisf (Nov 06, 2008 11:32 am) Eventually rust and age will get us all.  To help forestall that day, I have been rustproofing my car for the last 6 years using Krown.
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hello all, I drive a 2003 P5, last night was driving on gravel, having some fun sliding around turns...too much fun, and I think I threw a rod, not really sure, but my engine is making a loud knock and tap on regular intervals, not on and off, seems like everytime each cylinder cycles...tried to pull the spark plugs this morning, but I live on college campus away from my father's garage, so i didnt have the proper spark socket...anybody have any ideas? no fluid or oil leakin, dont think its transmission, sounds still occur in neutral....I was also thinking it might be a burnt valve, but sounds like every cylinder is doing it, so either all 16 valves which would probably make me cry...or a rod....  
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Replying to: mavswimmer (Nov 17, 2008 7:35 am) Sorry, I don't see the connection between the gravel and the engine knock. Coincidence, perhaps? If you rev the motor does the knocking increase? Alternatively, can you see under the car to see if anything has been bent by debris? If the car is driveable, I'd bring it to a garage.
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Replying to: mavswimmer (Nov 17, 2008 7:35 am) |
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Replying to: autonomous (Nov 17, 2008 9:41 am) But on extreme RPM, you can nick a valve with the piston head. |
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I definitely was driving it hard, but not pushing the rpm's over 5.5k...i dont think its the timing belt, because i can hear the knock and taps coming directly from the engine block, i also think i fouled atleast1, maybe 2 spark plugs, because cylinders are not firing...plus the knock, yes, when rpm's increase the knock increases with them, thats why im wondering if its valve/piston/rod issues...
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the car still runs and drives...but i just babied it back to the dorms and parked it, and until i take it in for estimate assesment and repair, im not going to start or drive it...it feels to me to be on the ragged edge
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| When the timing is off, the valves will open and close at the wrong time which can mess with the fuel/air ratio and the compression of that mixture at the time of ignition. If it's off, the mixture won't burn completely or at all and fouled plugs will result. Have it towed in for repair. Don't attempt to start the vehicle again. Good luck. | |
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