GL Class (X166) 2013-2015 after facelift became GLS (X166)

2013 gl450 FORD

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Old Sep 23, 2020 | 03:30 PM
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Forrest Gump 9's Avatar
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shrimp boat
2013 gl450 FORD

Hello all

not my vehicle, a friend has a 2013 gl450 died on the way to work. Her husband is a car guy like me so he towed it home and checked the codes.

P0456 small leak detected in fuel tank

P0087 low fuel pressure detected at the fuel delivery pressure sensor

p0442 small leak in fuel tank detected

my initial guess would be the high pressure fuel pump is toasted. Kinda weird to see these codes on the gasoline engine. Anyone here had ever seen these codes on their truck? What could cause them? Thank you
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Old Sep 25, 2020 | 03:45 PM
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From: New Orleans
2014 GL450, 1992 W140 300SD, 1993 W140 300SE, 1987 E30 Convertible
P0442 P0456 - Gas Cap and Evaporation System
P0087 - Low Pressure in Fuel Line
Two High Pressure Pumps. If one "dies" - usually limp mode - but still working (like crap).
There is a a third fuel supply low pressure pump in fuel tank itself. That one probably gone.
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Old Sep 25, 2020 | 10:18 PM
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Forrest Gump 9's Avatar
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Originally Posted by arsupisemnet
P0442 P0456 - Gas Cap and Evaporation System
P0087 - Low Pressure in Fuel Line
Two High Pressure Pumps. If one "dies" - usually limp mode - but still working (like crap).
There is a a third fuel supply low pressure pump in fuel tank itself. That one probably gone.
thank you. He towed the truck home and cleared the code, test driving round the block and put on about 20 miles, everything seems normal now. I’ll let him know about the intank pump
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