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Gm r u special on chevy 3500hd 6.5l?

Customer Question
hi gm r u special...
hi gm r u special on chevy 3500hd 6.5l?
Submitted: 2 years ago.Category: Chevy
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Answered in 8 minutes by:
2/21/2016
Chevy Mechanic: Gary, Chevy Technician replied 2 years ago
Gary
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 17,980
Experience: 15 years GM master tech
Verified

what is the problem you are having ?

what has been done so far to correct this issue ?

was anything done to where now its doing this ?

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Customer reply replied 2 years ago
One day my truck won't start,got it towed, and got PMD ,Glow plus, fuel filter ,don't start , off course I checked return line ,lift pump fine checked T fuel line runs good no air ,it looks like it wants to start but it don't , there is smoke so that was telling me fuel is getting to the piston, finally I cheng ed crank sensor, same result, check fuel shoot sensor it's fine but replace it same with LP, same result , put 2 new battery check all conception behind full filter and computer no corrosion same result finally replaced the Injection Pump same result, the computer semester fine bcs I have the wait to start light and at first I had code 0251 and 0370 once I clear it ,I don't have it again, I am a mechanic for seim trucks to but I don't know where to go from here need help tnx
Chevy Mechanic: Gary, Chevy Technician replied 2 years ago

if you remove a fuel line of any injector and crank it over will fuel come out ?

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Customer reply replied 2 years ago
Have you received my txt sir?
Chevy Mechanic: Gary, Chevy Technician replied 2 years ago

yes i did

if you remove a fuel line of any injector and crank it over will fuel come out ?

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Customer reply replied 2 years ago
Before I changed the LP and finally I PUMP yesterday yes I did and there was fuel but I thought maybe is not enough, after I consult one guy from fuel shop I decided to replace them and I did not checked yesterday because LP is new IP new fuel is coming from return line and it's just doing same thing before I did all those things
Chevy Mechanic: Gary, Chevy Technician replied 2 years ago

has the injection pump been replaced ?

is there fuel at a feed line at any injector when cranking it over ?

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Customer reply replied 2 years ago
sir I replaced IPUMP yesterday and fuel is getting to it and fuel is coming from return line on front top of z INJECTOR pump
Chevy Mechanic: Gary, Chevy Technician replied 2 years ago

the return should not have fuel pressure at it at the feed pressure line at the pump what do you have for fuel pressure ?

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Customer reply replied 2 years ago
I did not checked it with pressure tester but I don't think it's abnormal it's good flow and no air plus z INJECTOR pump I just put it yesterday so I don't think it has a problem, or what you thinking
Chevy Mechanic: Gary, Chevy Technician replied 2 years ago

we need to see if there is 4 psi of fuel pressure at the pump

also with the key ON is the check engine light lit up in the dash ?

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Customer reply replied 2 years ago
sir check engine lights up and when you crank it turns off, my full line to z tune is clear no obstruction, and the Old Lift pump was ok but to eleminate the dough I replaced New LP, pressure must be ok and new filter and took the filter housing and clean it and checked the house and clumps
Customer reply replied 2 years ago
Gary u couldn't thing of something?
Chevy Mechanic: Chris (aka-Moose), Technician replied 2 years ago
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
Satisfied Customers: 52,118
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Welcome, I'm Chris (aka Moose). Experts aren't employees / agents of Just Answer. We are independent service providers using the Site to sell their Expert knowledge to Customers. I strive to provide EXCELLENT 5 STAR service, let me know what's needed from me so your pleased.

The previous tech has opted out, would you like me to help?

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Customer reply replied 2 years ago
sir ,I run out of ideas about my truck ,I need help
Chevy Mechanic: Chris (aka-Moose), Technician replied 2 years ago

Do you have a scan tool that will show fuel pressure desired and actual?

Have you checked the compression?

IS the theft light on or flashing when trying to start?

Check voltage on fuses: IGNE, IGN0, ECM1, with engine cranking. Are they over 10 volts?

After cranking 15 seconds with the fuel return lines off, is each bank returning less than 12 mL?

Thanks for asking your question and letting me try to help you.

If your confused on why or how to rate me, let me know.

I'm only paid from the deposit you've made when you rate 3,4, or 5 stars.

Follow up/Reply as many times as needed before or after rating.

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