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6.5 diesel non turbo when its at idle it has a little surge…

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6.5 diesel non turbo when...
6.5 diesel non turbo when its at idle it has a little surge when you tough the pedal it goes to full throttle i have changed the tps no difference then replace black box on the side of injector pump and relocated no difference then replaced injector pump bleed lines i have a difference now it will not start unless i hold the throttle down a little and use starting fluid i have throttle response now but if i take my foot off the pedal it will die any thoughts
Submitted: 2 years ago.Category: Chevy
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Answered in 26 minutes by:
2/26/2016
Chevy Mechanic: Daniel Wilson,
 replied 2 years ago
Daniel Wilson
Category: Chevy
Satisfied Customers: 6,902
Experience: Owner at DJ Wilson
Verified

Hi Barry my name is***** will try to help. Are you getting any fault codes? What is your fuel pressure and have you monitored for air bubbles installing a clear hose between the tank and pump?

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