[stephen]

This morning the Mustang started and ran very rough for a moment then died and now won't start. I suspect a fuel pump problem.

I haven't noticed before, but when I turn on the ignition switch I understand I should hear the pump run for a few seconds. Should I listen at the fuel pipe with the cap off?

I know there is an inertia switch in the trunk left side also there is evidently a fuse. Anything else to check if the pump isn't running? I understand that starting in 99 there isn't a fuel pump relay, but some sort of a control module. Anyone know where that is located?

[HMUSN]

I would swap out your fuel filter first.
if you can hear the pump turn on odds are that is is working.

[Onemanzu]

check your fuses relays and switches to make sure that they are all good... after that check to make sure that you can hear the fuel pump ... if everything is quite its really easy to hear... sounds like a very small electric motor and should only last 1-3 seconds...

[stephen]

An update.

I found I could hear the fuel pump running and fuel pressure appears normal at 45 psi.

I found that there was only intermittent spark on some plug wires and none on others. I removed the plugs and they all smelled like gasoline. I plan to replace the coil, wires, and crank angle sensor and see if that helps.

[Juggalo_X]

check your oil just to be sure that any unburnt fuel didnt get forced past the rings into the crank case. my escort did this and it fucked the whole bottom end. i had a plug electrode fall of mid cruse didn't notice till i parked it and tried to restart it.

[itschristorres8]

Originally Posted by Juggalo_X check your oil just to be sure that any unburnt fuel didnt get forced past the rings into the crank case. my escort did this and it fucked the whole bottom end. i had a plug electrode fall of mid cruse didn't notice till i parked it and tried to restart it.

you had to have had some blow by in the engine previously or the compression or piston rings were bad because those pistons are sealed if not your oil pressure would be outstandingly high. or there was scoring or wear in the cylinder along the walls



as for the problem in the thread one way to check the fuel pump if that is it
have someone try to start the car and bang/hit the middle of your gas tank (thats where your fuel pump is) if it starts more then likely something is wrong with your fuel pump
i'd change the fuel filter first though and at least check the spark plugs and spark test the wires
if your spark test the wires and dont see a BLUE line(electricty) the wire or coil is no good
if you try new wires first and still dont see the blue line more then likely your coil is no good.
i'd just grab a screamin demon coil since its about the same price or cheaper then OEM from ford or an auto store i believe

[stephen]

Originally Posted by itschristorres8 you had to have had some blow by in the engine previously or the compression or piston rings were bad because those pistons are sealed if not your oil pressure would be outstandingly high. or there was scoring or wear in the cylinder along the walls as for the problem in the thread one way to check the fuel pump if that is it have someone try to start the car and bang/hit the middle of your gas tank (thats where your fuel pump is) if it starts more then likely something is wrong with your fuel pump i'd change the fuel filter first though and at least check the spark plugs and spark test the wires if your spark test the wires and dont see a BLUE line(electricty) the wire or coil is no good if you try new wires first and still dont see the blue line more then likely your coil is no good. i'd just grab a screamin demon coil since its about the same price or cheaper then OEM from ford or an auto store i believe

As I said, I found normal fuel pump pressure and gas on the spark plugs, so I think I'm getting normal fuel delivery.

I checked for spark with an inductive pickup timing light. It definately indicated intermittent spark on some wires and none on others.

I replaced the coil and saw no change.

I will replace the wires next. The first set I got were not the correct wires, but I swapped them for a set that seems to be right.

I also ordered the crank angle sensor.

[flattusmaximus78]

My car did that for a while I changed my fuel filter, and it ran shitty like twice after that but eventually it just stopped.

[stephen]

It's running again, but I'm not really sure what was wrong.

I replaced the coil, wires, and crank angle sensor and it still was cranking and trying to start but wouldn't go. I was going to have it towed to a shop and the tow truck driver cranked it for some time and got it going again. His diagnosis was water in the fuel which is consistent with the hard rains we've had around here.

I added a can of Heat to the gas and will run out the entire tank of fuel. Hopefully I won't have more problems.

[Juggalo_X]

thats some weird shit man

[V6MUSTANG_PROBLEMS]

The last couple months, my v6 mustang has been acting weird, idling funny, low performance, and sometimes wont start at all. I've had to have it towed home recently, and after wearing out the battery trying to start it, i've noticed that just letting it sit for a few hours, then it will start fine... This really has me bugging.... I've called ford tech's, they've had me search here and there, check this and that, but the bottom line is i can get the darn thing to start, after 3 hours has gone by when it wont start... I've been told the fuel pump is going out, i've been told to change my fuel filter, change your wires, your spark plugs, check your fuel pump reset switch and fuse's, OMG where does it end... Every time i check these things, all seems fine... No matter how long i crank the engine, it wont start, UNLESS I WAIT 2 TO 3 HOURS, then it starts fine like there was never a problem.. I SCREAM AT IT, KICK THE TIRES, YELL ALOT, IT'S REALLY DRIVING ME INSANE, AND MY NEIGHBORS ARE STARTING TO DISLIKE ME!

anyone got any ideas?

when a fuel pump goes out, DOESN'T IT JUST GO OUT???

One neighbor saw the problem I was having, and shook his head, ahh it's never gonna start, your going to wear out the starter, (I agreed with him) and stopped cranking the engine, it's rather annoying... and a few hours later, went out there and it started right up, he yells "hey what did you do" i said "NOTHING AT ALL" he said ahh b/s, I said no, really, i didn't do anything...

This car is starting to really drive me nuts, someone please help me!!!

[jrp11888]

Originally Posted by V6MUSTANG_PROBLEMS The last couple months, my v6 mustang has been acting weird, idling funny, low performance, and sometimes wont start at all. I've had to have it towed home recently, and after wearing out the battery trying to start it, i've noticed that just letting it sit for a few hours, then it will start fine... This really has me bugging.... I've called ford tech's, they've had me search here and there, check this and that, but the bottom line is i can get the darn thing to start, after 3 hours has gone by when it wont start... I've been told the fuel pump is going out, i've been told to change my fuel filter, change your wires, your spark plugs, check your fuel pump reset switch and fuse's, OMG where does it end... Every time i check these things, all seems fine... No matter how long i crank the engine, it wont start, UNLESS I WAIT 2 TO 3 HOURS, then it starts fine like there was never a problem.. I SCREAM AT IT, KICK THE TIRES, YELL ALOT, IT'S REALLY DRIVING ME INSANE, AND MY NEIGHBORS ARE STARTING TO DISLIKE ME! anyone got any ideas? when a fuel pump goes out, DOESN'T IT JUST GO OUT??? One neighbor saw the problem I was having, and shook his head, ahh it's never gonna start, your going to wear out the starter, (I agreed with him) and stopped cranking the engine, it's rather annoying... and a few hours later, went out there and it started right up, he yells "hey what did you do" i said "NOTHING AT ALL" he said ahh b/s, I said no, really, i didn't do anything... This car is starting to really drive me nuts, someone please help me!!!

hmm, few weeks ago i drove my car to lowes about 10 mins from my house. i went in and bought some stuff, came out and got in my car and tried to start it and nothing. i couldnt hear my fuel pump switching on when i turned the key so i called my father and he came with his fuel pressure guage and checked it at the fuel rail and no pressure. the fuel pump wasnt turning on. he towed me home and said "try to start it" so i turned the key and the fuel pump kicked on. the car started fine, its done it a few times since then but then it works fine. the first time he wiggled some wires behind my upper intake manifold and then it worked but idk if thats what helped or not. i've never changed the fuel filter before but the pump wasnt turning on so idk what it was. and ideas?

[mp4 player]

Fuel pumps can be intermittent when they start to go, it usually depends on what position they are stopped in. They're easy enough to replace and upgrade even.

Why are you two asking stuff in a thread that's over TWO YEARS OLD.

[jrp11888]

Originally Posted by mp4 player Fuel pumps can be intermittent when they start to go, it usually depends on what position they are stopped in. They're easy enough to replace and upgrade even. Why are you two asking stuff in a thread that's over TWO YEARS OLD.

i saw it pop up and replied because he had a similar problem with fuel pump. lol

[99 BLUE V6]

AGAIN another old thread pops up with itschristorres8 in it. Whats up with that

[jrp11888]

Originally Posted by 99 BLUE V6 AGAIN another old thread pops up with itschristorres8 in it. Whats up with that

lol

[V6MUSTANG_PROBLEMS]

Ok the car did it again, crank, crank, crank(for about a minute, then gave up) finally i noticed the THEFT LIGHT ON, blinking like it was being STOLEN, so i slammed my hand on the dash (THEFT LIGHT STOPPED BLINKING LIKE CRAZY), and the damn car started right up and ran fine... all these months of thinking the fuel pump was going out... turns out the fuel pump is told NOT TO RUN, in the event it thinks it's being stolen (SO IT WAS JUST DOING IT'S JOB.) So what would this be? a bad ground in the dash, or the ignition key switch?

-So at-least I know what to do if it ever does it again!!! Wish I had known that the last time when I had to have the darn thing towed home..

[V6MUSTANG_PROBLEMS]

Originally Posted by jrp11888 hmm, few weeks ago i drove my car to lowes about 10 mins from my house. i went in and bought some stuff, came out and got in my car and tried to start it and nothing. i couldnt hear my fuel pump switching on when i turned the key so i called my father and he came with his fuel pressure guage and checked it at the fuel rail and no pressure. the fuel pump wasnt turning on. he towed me home and said "try to start it" so i turned the key and the fuel pump kicked on. the car started fine, its done it a few times since then but then it works fine. the first time he wiggled some wires behind my upper intake manifold and then it worked but idk if thats what helped or not. i've never changed the fuel filter before but the pump wasnt turning on so idk what it was. and ideas?

Next time it does this, look at the dash and see if the THEFT LIGHT is blinking like crazy, could be the same problem my mustang was having, it would crank forever and not start, but by the time i had it towed home, it would start fine, like never a problem existed, but today i noticed the THEFT LIGHT BLINKING LIKE CRAZY, and thought to my self for a moment, "it's only doing it's job" which when it thinks it's being stolen, it turns the fuel pump off, and WILL NOT ALLOW IT TO OPERATE!

Now I don't know what caused that, but my remedy was brute force, and being a little pissed, so I slammed my hand on the dash right above the key, the light stopped blinking erratically, and went back to normal mode, as it did that, i heard that familiar WHINE, (the sound the fuel pump makes when pressurizing) and the car started right up... hope it helps

[mp4 player]

Originally Posted by V6MUSTANG_PROBLEMS Next time it does this, look at the dash and see if the THEFT LIGHT is blinking like crazy, could be the same problem my mustang was having, it would crank forever and not start, but by the time i had it towed home, it would start fine, like never a problem existed, but today i noticed the THEFT LIGHT BLINKING LIKE CRAZY, and thought to my self for a moment, "it's only doing it's job" which when it thinks it's being stolen, it turns the fuel pump off, and WILL NOT ALLOW IT TO OPERATE! Now I don't know what caused that, but my remedy was brute force, and being a little pissed, so I slammed my hand on the dash right above the key, the light stopped blinking erratically, and went back to normal mode, as it did that, i heard that familiar WHINE, (the sound the fuel pump makes when pressurizing) and the car started right up... hope it helps

Almost sounds like it could be a PATS problem.

If you have a spare key try using that for a while and see if that happens again.

Every once in a while you see someone's key die on them.