2005 Ford Focus 38000 miles
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About every third time i start it it blows the fuel pump fuse and continues to do so until something resets which usually takes a few hours. I have already replaced the fuel pump relay and the fuel pump itself.... any suggestions to what it might be?

If you can give us the exact model and engine size we can investige...there are quite a few Focus models!

It's the SE ZX4 with a 2.0 that has dual overhead cams

Auto or manual transmission?
2.0L/2.3L ENGINE WITH MTX-75 - LONG CRANK/HARD START -2005 Ford Focus...
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2.0L/2.3L ENGINE WITH MTX-75 - LONG CRANK/HARD START
TECHNICAL SERVICE BULLETIN
Reference Number(s): 05-9-16, Date of Issue:  May 16, 2005 FORD:2005 Focus
Related Ref Number(s): 05-9-16
ARTICLE BEGINNING
DESCRIPTION
LONG CRANK/HARD START - 2.0L AND 2.3L ENGINE WITH MTX-75 TRANSAXLE
ISSUE
Some 2005 Focus vehicles equipped with MTX-75 manual transaxles, may exhibit a long crank or hard start condition with no malfunction indicator lamp (MIL) and no diagnostic trouble codes (DTCs) present.
ACTION
Reprogram the powertrain control module (PCM) to the latest level using WDS release B36.12 and higher or B37.3 and higher. This new calibration is not included in the B37 CD. Calibration files may also be obtained at www.motorcraft.com.
WARRANTY INFORMATION
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage.
WARRANTY INFORMATION
Operation 050916A 2005 Focus 2.0L/2.3L With MTX-75 Transmission Check For Diagnostic Trouble Codes And Reprogram Powertrain Control Module (Do Not Use With 12650D, 12650D84) Description
Time 0.4 Hr.
DEALER CODING Basic Part No. RECAL
Condition Code 04
© 2007 Mitchell Repair Information Co., LLC.
http://www.ondemand5.com/mric/common/asp/printart.aspx
8/15/2008
This may or may not be the problem, when the fuse blows is it during cranking or after it starts and is running?

it is an automatic transmission and it has happened while driving down the highway.... that was the first time it happened, but every time after the fuse has blown on the crank

You'll have to use an ohm meter and trace the two wires shown from the PCM to the fuel pump driver module under the right rear seat, then out to the pump. One is black/white stripe the other is green/black stripe.

The PCM is on the right front at the bottom of the A pillar, at passengers feet.