Cat C12 Fuel Pressure?

nceaglene · 02-26-2010, 04:38 PM

Anyone know what the pressure should be @ idle and @ high idle? Hard starting but runs ok otherwise

nceaglene · 03-03-2010, 08:41 PM

ok so new fuel pump, new fuel filter head assymbly. reading good prusse at crank. slightest whiff of ether and its off and runnin. kill it and let it sit for more than 1 minute and it will not crank.

nceaglene · 03-03-2010, 08:42 PM

determined fuel pump was bad, batteries-junk. problem still remains. no codes.

ynot · 03-04-2010, 03:02 AM

If you have another one there, swap cam sensors and see if it sparks. Also make sure it spins over 350rpm or it won't fire (sensors won't read). If neither try checkin pulse width (or voltage) on the ECM for the TPS...

02-26-2010, 04:38 PM	#1
nceaglene Junior Member Join Date: Oct 2009 Location: New Caney, Texas Posts: 47 Points: 4,333 Thanks: 5 Thanked 3 Times in 3 Posts	Cat C12 Fuel Pressure? Anyone know what the pressure should be @ idle and @ high idle? Hard starting but runs ok otherwise

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03-03-2010, 08:41 PM	#2
nceaglene Junior Member Threadstarter Join Date: Oct 2009 Location: New Caney, Texas Posts: 47 Points: 4,333 Thanks: 5 Thanked 3 Times in 3 Posts	ok so new fuel pump, new fuel filter head assymbly. reading good prusse at crank. slightest whiff of ether and its off and runnin. kill it and let it sit for more than 1 minute and it will not crank.

03-03-2010, 08:42 PM	#3
nceaglene Junior Member Threadstarter Join Date: Oct 2009 Location: New Caney, Texas Posts: 47 Points: 4,333 Thanks: 5 Thanked 3 Times in 3 Posts	determined fuel pump was bad, batteries-junk. problem still remains. no codes.

03-04-2010, 03:02 AM	#4
ynot The other guy Join Date: Jan 2007 Location: Des Moines, IA Posts: 3,444 Points: 47,885 Thanks: 5 Thanked 995 Times in 670 Posts	If you have another one there, swap cam sensors and see if it sparks. Also make sure it spins over 350rpm or it won't fire (sensors won't read). If neither try checkin pulse width (or voltage) on the ECM for the TPS...

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