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What would be the best way to determine why a 2002 Mazda protege with 60000 miles takes a lot longer to start?
Wiki User
∙ 17y ago
A computer diagnostic test will give you a lot of information about the status of the engine. It's relatively simple, just borrow, rent or buy one of the OBD2 code scanners, and plug it in to the diagnostic port on your vehicle. Many of the auto parts retailers can lend or sell you a code scanner AND help you figure out what the diagnostic codes mean. One thing to try that ISN'T picked up by the diagnostic scan, try turning the key to the ON position for a few seconds before you try to start the engine next time. That should let the fuel pump build pressure. Then turn the key off and then immediately try to start the engine. If it starts much more quickly, it could be a slowly leaking check-valve in the fuel pump or the fuel pressure regulator. Either way, those are relatively minor problems and you don't need to run right out and repair them unless it's a major annoyance. If that's not the problem, check the normal ignition problems, such as plugs, wires, EGR valve... and if it goes much beyond that, run a compression test to see if the problem could be related to low compression. If an engine has low compression, it WILL have problems starting.
Wiki User
∙ 17y ago
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