Q: Car is cranking, but not fully turning.

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My car was having a hard time starting, it takes few hrs to start then will do the same the next day. I have replaced fuel pump, filter, and strainer, still won't start help pls.

My car has 90000 miles.
My car has a manual transmission.

Hi There, It sounds like you may have a faulty ignition coil. When this happens, this can cause the intermittent type of starting you describe. Ignition coils are coated with a varnish-like insulation that becomes brittle over time after being stretched then contracted repeatedly The insulation develops small fractures that open when heated and close when cooled. When open, they allow shorting of coil windings and decrease or eliminate the coil’s ability to function. This type of temperature cycling happens because every time you shut the engine off, the fan stops running, the coolant stops flowing and the temperature under the hood rises. Every time you start the engine again the coolant flows, the fans turn on, and the temperature drops. When this heat dissipates and is absorbed under the hood, it is trapped causing this cycling effect. Components that contain heat sensitive materials include parts like coils, injectors, igniters, and some sensors. Any of these may be potentially subject to this same kind of heat problem which can be very difficult to trace. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle.

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