hey guys.
i've been a little reluctant to post this because i just wasn't sure what the heck was causing the issue. here's a little background on what's happening:
a couple of months ago, i went out to start the car so i could run some errands. i had my mother-in-law with me because she wanted to get out of the house for a bit. we made a few stops, had lunch, returned home. i had no issues starting and restarting the car. i was able to move it that evening for street sweeping the next day.
the next day, after sweeping was over and i wanted to move the car, i would go to start it and it wouldn't. the starter would turn over just fine, but the car felt like it wouldn't catch. i checked for spark, not a problem. checked for fuel and noticed i didn't get a spray from the schrader valve on the fuel line. tried to diagnose for a couple of hours and then wound up having to push the car back on the street.
i did some research into the problem and found that the CCRM might be an issue, as it houses amongst the four relays contained in it, the fuel pump relay. i've heard of this module needing to be replaced in other fords due to various relays failing.
so, i acquired a replacement from an 03 mustang gt. plugged it in, reconnected the battery, turned the key. i heard all of the relays come on, but the car wouldn't start. it would turn, but no start.
frustrated, i focused on the next link in the chain: the FPDM [fuel pump driver module]. luckily, i had pulled the module from the same vehicle that i retrieved the CCRM. now before i swapped this module out, i decided to turn the ignition switch just for shites and giggles. lo and behold, i heard the familiar hum of the fuel pump come on.
after running the car for a few minutes to let it get to warm idle, i shut it down, swapped out the module and then tried again. it started just fine. i repeated the engine start-up for a couple of days, at least 2-3 times a day at varying times to see if the condition popped back up.
well, right before our christmas trip to vegas, it did. car wouldn't start no matter what i did. closed it up and it's been sitting since.
---------------------------------
my question is this: is my fuel pump shot?
could there be something else i'm overlooking? would a weak battery cause the fuel pump not to prime?
i know the FPDM controls voltage to the pump itself in order to increase/decrease flow. i know the CCRM controls the relay to the pump. both of these modules work fine.
i would really appreciate any constructive help with this issue. if i do wind up having to replace the pump, that's not a problem. i just want to know if there's something i haven't overlooked before making that call.
thanks. :burnout:
i've been a little reluctant to post this because i just wasn't sure what the heck was causing the issue. here's a little background on what's happening:
a couple of months ago, i went out to start the car so i could run some errands. i had my mother-in-law with me because she wanted to get out of the house for a bit. we made a few stops, had lunch, returned home. i had no issues starting and restarting the car. i was able to move it that evening for street sweeping the next day.
the next day, after sweeping was over and i wanted to move the car, i would go to start it and it wouldn't. the starter would turn over just fine, but the car felt like it wouldn't catch. i checked for spark, not a problem. checked for fuel and noticed i didn't get a spray from the schrader valve on the fuel line. tried to diagnose for a couple of hours and then wound up having to push the car back on the street.
i did some research into the problem and found that the CCRM might be an issue, as it houses amongst the four relays contained in it, the fuel pump relay. i've heard of this module needing to be replaced in other fords due to various relays failing.
so, i acquired a replacement from an 03 mustang gt. plugged it in, reconnected the battery, turned the key. i heard all of the relays come on, but the car wouldn't start. it would turn, but no start.
frustrated, i focused on the next link in the chain: the FPDM [fuel pump driver module]. luckily, i had pulled the module from the same vehicle that i retrieved the CCRM. now before i swapped this module out, i decided to turn the ignition switch just for shites and giggles. lo and behold, i heard the familiar hum of the fuel pump come on.
after running the car for a few minutes to let it get to warm idle, i shut it down, swapped out the module and then tried again. it started just fine. i repeated the engine start-up for a couple of days, at least 2-3 times a day at varying times to see if the condition popped back up.
well, right before our christmas trip to vegas, it did. car wouldn't start no matter what i did. closed it up and it's been sitting since.
---------------------------------
my question is this: is my fuel pump shot?
could there be something else i'm overlooking? would a weak battery cause the fuel pump not to prime?
i know the FPDM controls voltage to the pump itself in order to increase/decrease flow. i know the CCRM controls the relay to the pump. both of these modules work fine.
i would really appreciate any constructive help with this issue. if i do wind up having to replace the pump, that's not a problem. i just want to know if there's something i haven't overlooked before making that call.
thanks. :burnout:
