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When cranking, need gas?

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Old 04-27-2017, 02:03 PM
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Default When cranking, need gas?

I have a 1988 Dodge Dakota 3.9 239 V6 automatic. When I go to crank up the truck, I will have to give the truck some gas to get it to fire. Any recommendations on what the problem is & how to fix it.
This truck has the Holley TBI with 2 fuel injectors. I have replaced the fuel filter, spark plugs, wires, distributor cap, & rotor button.
 
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Old 05-05-2017, 01:12 PM
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Bump for Josh. I would like to hear this as well. My 93 5.2L Magnum MPFI has started doing the same thing.
 
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Old 05-05-2017, 05:00 PM
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I'm going to guess Idle Air control Valve....On cold start, your TBI butterfly's are closed...only way to get air is through the Idle Air control valve...if it's gunked up, then when you press the throttle to "give it gas", you're opening the butterfly also to allow air into the mixture. Purely a guess as I don't know much about the TBI setup...I had one on my 90 and ripped it out
 
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Old 05-05-2017, 11:17 PM
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Originally Posted by robertmee
I'm going to guess Idle Air control Valve....On cold start, your TBI butterfly's are closed...only way to get air is through the Idle Air control valve...if it's gunked up, then when you press the throttle to "give it gas", you're opening the butterfly also to allow air into the mixture. Purely a guess as I don't know much about the TBI setup...I had one on my 90 and ripped it out
TBIs don't have an Idle Air Control valve, they have a throttle kicker.

Which can also gunk up ... all the Idle Speed Controller (aka "throttle kicker") does is, well, kick the throttle.

I'll bet that's acting up.

RwP
 
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Old 05-08-2017, 10:39 AM
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Originally Posted by RalphP
TBIs don't have an Idle Air Control valve, they have a throttle kicker.

Which can also gunk up ... all the Idle Speed Controller (aka "throttle kicker") does is, well, kick the throttle.

I'll bet that's acting up.

RwP
Where is the Idle Speed Controller located at? I have got to find my Haynes manual!!
 
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Old 05-08-2017, 10:40 AM
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Thank You for the info RalphP and robertmee!!
 
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Old 05-08-2017, 10:45 AM
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Is this what an idle air speed controller looks like?
 
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Old 05-08-2017, 10:32 PM
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Originally Posted by Josh89Griffin
Where is the Idle Speed Controller located at? I have got to find my Haynes manual!!
That Haynes manual should be in the trashcan.

Find a copy of the Chrysler Factory Service Manual (quite often can be found on Ebay) and refer to that.

RwP
 
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Old 05-08-2017, 10:32 PM
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Originally Posted by Josh89Griffin


Is this what an idle air speed controller looks like?
That's the throttle kicker, all right!

RwP
 
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Old 05-09-2017, 08:25 AM
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Now, is there a way to clean the idle speed control actuator/throttle kicker? If so, how do you clean it? Thanks!
 



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