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  #1  
Old 07-25-2006, 12:27 AM
Motorhead's Avatar
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'77 240D loses low speed power when weather is hot

Yea, I know that a 240D with an automatic IS a slug but..... When the outside weather gets hot, it will barely get out of its own way from idle to about 1000rpm.

I have changed BOTH fuel filters.
I have the altitude compensator backed off all the way
The fuel strainer in the tank is clean
It gets FULL throttle
I don't believe the valves are tight

It sometimes wants to go from a stop but then loses a little power. Once it starts to rev up, it runs great all the way to 80. I can climb grades without power loss.
Can the primary fuel pump be going bad?
Leaving a signal lights gets interesting, I push it to the floor to get it to start in first but sometimes it still creeps until it gets rpms up a little.

Any suggestions????
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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.

Last edited by Motorhead; 09-01-2006 at 01:59 AM.
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  #2  
Old 09-01-2006, 12:18 AM
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Join Date: Mar 2006
Location: Plano,(DFW),Tx
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300D seems simlar Symptoms...

Hi,

My 300D seems to have simlar Symptoms... have you figured any more out ?

Heard from anyone else regarding your issue ?

Let me know if you can, Thx.
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  #3  
Old 09-01-2006, 02:03 AM
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No other input as yet. I have since adjusted my valves, checked the chain stretch issue (OK), and changed the fuel pressure relief on the aft side of the inj pump. The only other thing I am going to try is changing out the primary pump with a used one I have. If it works, I'll let you know.
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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.
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  #4  
Old 09-01-2006, 02:07 AM
ForcedInduction
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Might clean your tank strainer or try a different fuel station.
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  #5  
Old 09-01-2006, 02:09 AM
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Tried that.... Thanks.
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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.
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  #6  
Old 09-01-2006, 02:12 AM
ForcedInduction
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Quote:
Originally Posted by Motorhead View Post
Tried that.... Thanks.
Doh, missed that in your first post.
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