Crank No Start -

4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Thread Tools Search this Thread
Old 05-23-2014, 08:21 PM   #1
Thread Starter
BrightBlue00GT's Avatar
Join Date: Jun 2009
Location: CA
Posts: 11
Default Crank No Start

It's been fine until this morning. Cranks over strong, but will not start. Doesn't even attempt to catch and fire up, just cranks.

PATS I think is fine: normal blinking light when OFF, steady ON for 2-3 seconds during key ON or when Cranking, then goes out.

Fuses under the hood are ok, nothing blown.

Fuses in passenger compartment, I admit I am having a hard time checking those as I'm a big guy now and can't get under there too well. I think the only two of concern under there might be #2 and #8, both Engine Controls. Others that might be of concern are all linked to multiple components that are working ok so I think I can rule them out i.e. #19 (Anti-Theft Relay, Power Door Locks) because the power door locks work and #34 (Instrument Cluster, CCRM, Data Link Connector, Securilock Transceiver Module) because the instrument cluster is working during crank.

KM BAP in-line fuse is ok, not blown.

Fuel pump shut-off 'inertia' switch in the trunk is not popped, but I pushed on it anyway... no change, it's still down.

I also admit I cannot verify a noise from the fuel pump, because the noise from my KB intercooler pump in the front wheel well is all I can hear. I am waiting for a friend to come over and help me listen for the fuel pump hum.

Fuel filter is only about 3 months old.

I am going to have it towed to the base autoshop, put it on a lift and start looking at the fuel filter and possibly fuel pump.

Any other ideas at this point?
BrightBlue00GT is offline   Reply With Quote
Old 05-24-2014, 05:41 AM   #2
Thread Starter
BrightBlue00GT's Avatar
Join Date: Jun 2009
Location: CA
Posts: 11

I was expecting, and hoping, the fuel pump to be the problem, because then it's something I can fix rather easily.

Luckily when i arrived at the base auto hobby shop, via tow ugh, I had one of the guys rap on the tank as I cranked it and sure enough it started right up... I definitive sign it was the fuel pump.

I already had a new 255 Focus pump sitting in my parts bin (a must if you're stationed oversees with your American car) that I never swapped in for the stock, so I again lucked out having a pump.

Spent the day dropping the tank and changing the pump and started right up. Back on the road again!

Thanks all and Happy Memorial Day
BrightBlue00GT is offline   Reply With Quote
Old 05-24-2014, 01:32 PM   #3
2nd Gear Member
Join Date: Apr 2008
Location: NJ
Posts: 436

Ok good! I was gonna give you some info on diagnosing a fuel pump issue but it seems you already got the fix. Good for you.
DeathRattle is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
mysterious water leak zsmart Convertible Tech 2 02-29-2016 08:33 AM
1990 5.0 dead 1TUFF302 5.0L (1979-1995) Mustang 11 11-05-2015 04:02 PM
Car died while driving... StalkerGT 5.0L (1979-1995) Mustang 13 09-25-2015 02:41 PM
The Future of my GT vintageaion 2005-2014 Mustangs 2 09-08-2015 10:45 AM
5.0 wont start condition 5.0 kevo 5.0L (1979-1995) Mustang 6 09-03-2015 06:24 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 08:31 AM.