1st Gen Dakota Tech 1987 - 1996 Dodge Dakota Tech - The ultimate forum for technical help on the 1st Gen Dakota.

When cranking, need gas?

Thread Tools
 
Search this Thread
 
Old Apr 27, 2017 | 02:03 PM
  #1  
Josh89Griffin's Avatar
Josh89Griffin
Thread Starter
|
Professional
Joined: Apr 2017
Posts: 167
Likes: 0
From: South Georgia
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.
 
Reply
Old May 5, 2017 | 01:12 PM
  #2  
co.45's Avatar
co.45
Amateur
20 Year Member
Joined: Jun 2005
Posts: 32
Likes: 0
Default

Bump for Josh. I would like to hear this as well. My 93 5.2L Magnum MPFI has started doing the same thing.
 
Reply
Old May 5, 2017 | 05:00 PM
  #3  
robertmee's Avatar
robertmee
Record Breaker
Joined: Aug 2013
Posts: 1,033
Likes: 1
Default

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
 
Reply
Old May 5, 2017 | 11:17 PM
  #4  
RalphP's Avatar
RalphP
Champion
Joined: Jan 2013
Posts: 4,737
Likes: 374
From: Northwest Louisiana
Default

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
 
Reply
Old May 8, 2017 | 10:39 AM
  #5  
Josh89Griffin's Avatar
Josh89Griffin
Thread Starter
|
Professional
Joined: Apr 2017
Posts: 167
Likes: 0
From: South Georgia
Default

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!!
 
Reply
Old May 8, 2017 | 10:40 AM
  #6  
Josh89Griffin's Avatar
Josh89Griffin
Thread Starter
|
Professional
Joined: Apr 2017
Posts: 167
Likes: 0
From: South Georgia
Default

Thank You for the info RalphP and robertmee!!
 
Reply
Old May 8, 2017 | 10:45 AM
  #7  
Josh89Griffin's Avatar
Josh89Griffin
Thread Starter
|
Professional
Joined: Apr 2017
Posts: 167
Likes: 0
From: South Georgia
Default



Is this what an idle air speed controller looks like?
 
Reply
Old May 8, 2017 | 10:32 PM
  #8  
RalphP's Avatar
RalphP
Champion
Joined: Jan 2013
Posts: 4,737
Likes: 374
From: Northwest Louisiana
Default

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
 
Reply
Old May 8, 2017 | 10:32 PM
  #9  
RalphP's Avatar
RalphP
Champion
Joined: Jan 2013
Posts: 4,737
Likes: 374
From: Northwest Louisiana
Default

Originally Posted by Josh89Griffin


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

RwP
 
Reply
Old May 9, 2017 | 08:25 AM
  #10  
Josh89Griffin's Avatar
Josh89Griffin
Thread Starter
|
Professional
Joined: Apr 2017
Posts: 167
Likes: 0
From: South Georgia
Default

Now, is there a way to clean the idle speed control actuator/throttle kicker? If so, how do you clean it? Thanks!
 
Reply



All times are GMT -4. The time now is 11:17 PM.