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max hd 8 problem


Nosworc

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My hd8 max wont hardly pull itself. Falls on its face if I accelerate ..Ive changed plugs,pulled fuel pump and cleaned a not dirty fuel screen.

 dont know where to go next unless preesure reg and pump is bad maybe> its a 2017

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Have you checked the belt?

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the way it spits and sputters when idling I wouldnt think its a belt

 

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I also got a code that says to lean fuel..probably should have mentioned that... so not enough fuel mixing with air...fuel pump bad? map sensor? 

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Just now, Nosworc said:

I also got a code that says to lean fuel..probably should have mentioned that... so not enough fuel mixing with air...fuel pump bad? map sensor? 

Friend has a HD10 Max. Same exact symptoms as yours. Replaced fuel pump and fixed it! 

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Quote

good to know ,thanks

 

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got new fuel pump today,took about 5 minutes to install. runs like a champ....now if i could figure out how to get that stupid check engine message to disappear

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Good to hear that you are up and running, the fuel pump/regulator should put out 51 psi +/- 1 psi, unfortunatley I can't find a code reset procedure for the check engine light so it will probably mean a trip to the dealer to be reset using BUDS.🤨

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  • 9 months later...

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Champbush@yahoo.com

Got a 2019 Can Am defender HD10.  Replaced rear fuel rail twice it just broke again??? What the heck?  Anyone know why?

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