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Miss fire/no power high RPM

Truck not reaching max rpm Change the lp reg and fuel pressure sender, had to much psi (15) at idle. Now running at 8 psi idle full pedal 13psi at 1900 rpm truck when first stated sometimes will reach 2300 rpm after warm up will only reach 1900 code 522636-4 rich Gm 4.3 Idea's ?
  • Posted 24 Apr 2015 04:13
  • By toytech
  • joined 24 Apr'15 - 1 message
  • Oregon, United States
ME
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did you ever figure out what your issue was I am currently going through the same thing with one of mine and was curious as to what you found
  • Posted 2 Dec 2015 08:13
  • By diesel_chick87
  • joined 19 Jun'15 - 14 messages
  • Oregon, United States
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Esie Cortez Esie Cortez
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Vice president - IT & EP OEM parts, Big Joe Forklifts
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Vice president of finance, Exotec
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President - business area industrial equipment, Konecranes
Deborah Baker
Board chair, Equipment Leasing & Finance Association
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