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excess Motor cranking before starting

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Jack123
User

Jun 14, 2009, 11:15 AM

Post #1 of 5 (3292 views)
excess Motor cranking before starting Sign In
04 Dakota Pickup SLT 4.7 L 35Kmiles

Since warmer weather, its taking longer (cranking)
before engine starts.

More so when cold, but also when starting again,
15-45 min time frame (motor still warmed up).

Sometimes I'll crank a few seconds then pump gas a few times
then cranks a bit more then finally starts.
Not really sure that this helps all that much.


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Jun 14, 2009, 11:23 AM

Post #2 of 5 (3289 views)
Re: excess Motor cranking before starting Sign In
Jack; In cold weather, the engine requires more fuel to start. The fuel delivery is determined by the coolant temp sensor telling the computer it's cold out there. As the engine warms, it doesn't need as much to start. It sounds as if it may be too rich (too much fuel being delivered). If you crack the throttle while cranking, does it help? The coolant temp sensor can be tested with an ohmmeter. The resistance values will change as the temperature increases and decreases. We can provide a chart if you want to do that. Pumping the throttle on a fuel injected engine does nothing other than increasing air flow. (should be called an air pedal, not a gas pedal).
Loren
SW Washington


Jack123
User

Jun 15, 2009, 10:05 AM

Post #3 of 5 (3278 views)
Re: excess Motor cranking before starting Sign In
Loren,

Thank you,

if you do have a chart for the sensor,
it would be most appreciated.

Thanks


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Jun 15, 2009, 3:35 PM

Post #4 of 5 (3269 views)
Re: excess Motor cranking before starting Sign In
Jack; I'm still looking for that chart. I'll post it as soon as I can find the darned thing.Unsure btw, do you have a 'Check Engine Lamp' illuminated?
Loren
SW Washington


Guest
Anonymous Poster

Jun 16, 2009, 2:29 AM

Post #5 of 5 (3260 views)
Re: excess Motor cranking before starting Sign In
No, Engine Lamp' is not illuminated.

Thanks





 
 
 






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