Motor home sat for 5 years with same diesel fuel. Started it each month during those five years. Idles fine. However, when I took it on the road the "check engine" light went on, lost power, sluggish. Replaced fuel filter, emptied diesel tank and replaced with new fuel. Didn't help. What else could it be.
SOURCE: no power
the exhaust may have a blockage in it....maybe the cat converter....motors don't have power unless they can get rid of the exhaust.....
SOURCE: Engine dies for no apparent reason after several hours running
Sonds like a sensor putting out an error code to shut it down ( like a fatal error code) Prolonged vibrations and heat can make cam sensors, maf, o2 senosr do craz ythings which will actuate a govener and stall your car...could also be you fuel pump causually telling you that "hey im bout to die".I dealership can run a stress test (if you will) to check the longivity of the pump...
Good luck hope this helps :)
SOURCE: o2 lincoln ls check engine
You have two pumps,I guess you know that ,if you already did one. Did you check fuel pressure at the rail and check out the electronic pressure regulator? What codes are coming up and do they stay set?
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SOURCE: I asked this question on
The LS Lincoln Has 2 Fuel Pumps . The One On The Drivers Side Is Called A Transfer Pump , It Pumps Fuel From Drivers Side Of Tank To Passenger Side Both Pumps Have Sending Units On Them The Transfer Pump Sending Unit Was Bad
SOURCE: Check engine light stayson & car idles
There are many different things in todays engines that can cause a rough idle. First you need to know what codes the engine is throwing. My suggestion for this is to make use of Autozone's(or similar part stores) free engine diagnosis. They will give you a print off of the codes and it includes most likely causes and fixes.
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