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2002 7.3L No start - No smoke

11709 Views 9 Replies 5 Participants Last post by  MickeyAkr
Hi. Have read other related posts and tried the advice but cannot get the engine to start. Appreciate everyone's posts and would really appreciate some advice.

Engine stopped midway through a 200 mi trip. Would start rarely but a few times started when warm but only ran a few minutes. Towed home and now no start and no smoke. Am a weekend mechanic. More of a electronics guy and have the tools and experience to repair circuit boards.

  • Engine cranks over.
  • HPOP has oil within 1" of top. No HPOP leaks.
  • Fuel pump runs and fills fuel filter bowl.
  • Fuel filter is new. Changed filter when checking to see bowl fill by pump.
  • Batteries are charged and less than 1 yr old
  • GPR test good
  • Tach does not move when cranking. WTS DOES light every time.
  • CPS was replaced by Ford on recall 6 months ago.

Do not have a high end code reader but have a dashcommand which provides limited but some information. The data it provides is in the context of the PIDs interpreted by a set of dashes I am using. The interpretation of the pids was done by user rallyclimber at iPhone and Dashcommand with my 02 7.3 - Ford Truck Enthusiasts Forums.

When cranking the dash command provides these measurements:
  • EOT=59F
  • IAT=56F
  • IMAT=106F
  • EBP=14PSI
  • TFT=57F
  • ICP=2000PSI while cranking and 222PSI with key in ignition after cranking stops.
  • GPR=98.83 (not sure what this number represents but the GP side of the GPR terminal reads ~.75 volts less than the hot side of the GPR.
  • MAP=99 kPa

Check engine light does not come on and the dash command does not read any codes even though it has a limited capability. All fuses test OK.

Appreciate any suggestions on where to look next.

Thanks
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Probably the cps. The ford replacement isn't great to start with and could have gone bad already.
The tach not moving also points towards the cps. Someone more knowledgeable I'm sure will chime in and confirm or give you someplace else to look.
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