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Posted on Jan 02, 2017
check the high pressure return line behind the fuel filter the clamp securing it will vibrate and rub a hole in the line. i was quoted a couple of hundred to replace the line, i put a small piece of fuel line over the hole and secured it with a worm gear clamp. no leaks in over 2 years
Posted on May 05, 2009
SOURCE: codes 2001 f350 7.3
Code p1280 is a low or high fuel pressure code. To check that,you need to first check the icp sensor connector drivers side
cylinder head front. The sensor is located between the valve cover and
the block. Try wiggling the connector while the truck is running to see
if there is a change in the running of the engine such as stumbling.
Code p1211 means the ICP pressure is above or below specs meaing there is a high pressure oil concern. You need to monitor the ICP with a scan tool and see which it is. If its high then its most likely a faulty IPR valve. If its low then its most likely a internal leak at the pump or stand pipes.
Code p1139 is for a Water in Fuel Indicator Circuit Malfunction. I would check the wiring on this sensor, and if no issues come from wiring, replace this indicator sensor.
Posted on Oct 17, 2009
You'll have to drain system down when cooled off, remove any brackets in your way such as power steering reservoir holding bracket, then remove 2 bolts holding the housing, and remove it. Rad hose should be o.k. to leave on, but if it creates a problem, remove it as well. I'd install a new thermostat and "o" ring complete,then a new gasket as well. Clean all surfaces well before re-installing. Replace any bracket(s) you removed to access housing, after housing is installed. Remember, air valve on edge of thermostat goes in 3 oclock position when re-installed. Also a reminder as well, spring on thermostat goes down when re-installed. After all is re-assembled, re-fill coolant and start engine and run with heater on to bleed out all air. Leave rad cap off and pay attention to temperature gauge and when you see it getting to normal operating temperature, watch flow in rad for increased flow, indicating thermostat opened and coolant is circulating properly. Wait until you see that flow increase 2 or 3 times, and air should be out of system, and top up coolant in rad, put cap back on, and check that return bottle is at proper level as well. Keep an eye for any leaks, and re-check return bottle periodically for first little while, just to be sure all is good. Note: some only use the "O" ring as a seal, and no gasket is required, but just check that at autoparts place where you get part.
Posted on Dec 28, 2009
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