Excessive crank to start
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Excessive crank to start
Having trouble with my 96 6.5. I have to crank for a long time before it will start. I have changed the glow plugs checked the glow plug controller all ok. Both batteries are new. Fuel and air filter recent. Lift pump ok .There is a small puff of white smoke when it starts. After started runs great not problems. Are there any one way check valves that could be letting fuel bleed back to the tank or could this be caused by the pmd. I replaced it last year but it was a cheap one off of eBay. Any ideas would be great. Thanks.
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That fitting on the top of the IP is a check valve. It allows fuel to flow out into the return system, but should not allow any flow into the pump. If it goes bad, you lose prime and have to suck fuel through the lines (cranking) until it gets fuel to the IP. A 9/16 wrench will take that off. Remove it and make sure you can only blow air one way ("out").
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