Throttle valve control

Tiny
JOHNNY MILLS
  • MEMBER
  • 1999 FORD RANGER
  • 3.0L
  • 6 CYL
  • 2WD
  • MANUAL
  • 330,000 MILES
I am not getting power to the throttle valve control.
Thursday, March 15th, 2018 AT 6:11 PM

20 Replies

Tiny
ASEMASTER6371
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Good morning.

Do you mean the Idle control valve?

Roy
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Friday, March 16th, 2018 AT 3:07 AM
Tiny
JOHNNY MILLS
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Yes.
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Friday, March 16th, 2018 AT 4:04 AM
Tiny
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The red wire to the IAC is a common voltage sent to all the injectors as well. It comes from the fuse block.

Does the engine run?
Did you check for power with key on engine off?

Roy
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Friday, March 16th, 2018 AT 4:47 AM
Tiny
JOHNNY MILLS
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The engine light is on I checked the plug to the throttle control with the ignition on and there is no power.
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Friday, March 16th, 2018 AT 5:02 AM
Tiny
JOHNNY MILLS
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Yes it runs. I am thinking the white wire ground may have a bad connection. What do you think?
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Friday, March 16th, 2018 AT 5:04 AM
Tiny
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Okay, the red wire should have power and it comes from a splice that also feeds the injectors. It is the same color wire. Check for power to the injectors on the red wire.

What is the code?
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Friday, March 16th, 2018 AT 5:06 AM
Tiny
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No, you need power before you can think a ground.

Roy
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Friday, March 16th, 2018 AT 5:08 AM
Tiny
JOHNNY MILLS
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Okay and if no power what is next?
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Friday, March 16th, 2018 AT 5:08 AM
Tiny
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As I just stated, check for power to the injectors.

What code number?
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Friday, March 16th, 2018 AT 5:09 AM
Tiny
JOHNNY MILLS
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Okay.
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Friday, March 16th, 2018 AT 5:09 AM
Tiny
JOHNNY MILLS
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I think he said po 0505 something like that. He said its the control valve. I put a new one on and same problem so I checked the wires and no power. Do these wires go to a pigtail behind the intake?
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Friday, March 16th, 2018 AT 5:13 AM
Tiny
JOHNNY MILLS
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The truck runs its just that the control valve is not getting power.
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Friday, March 16th, 2018 AT 5:15 AM
Tiny
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It goes to a splice that ties the injectors as well. Let me see if I can find the splice.
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Friday, March 16th, 2018 AT 5:15 AM
Tiny
JOHNNY MILLS
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Thanks the truck runs its just no power to the idle valve control.
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Friday, March 16th, 2018 AT 5:17 AM
Tiny
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The splice is back by number six injector harness. C122 is the connector.

Roy
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Friday, March 16th, 2018 AT 5:20 AM
Tiny
JOHNNY MILLS
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So I will need to take the intake manifold off to get to it.
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Friday, March 16th, 2018 AT 5:23 AM
Tiny
JOHNNY MILLS
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The diagram you sent is too small to read. I am using my phone to communicate do not have home internet thanks anyways.
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Friday, March 16th, 2018 AT 5:25 AM
Tiny
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You can run a jumper wire from the red wire from the injector to the red wire of the IAC and see if it makes the valve work.

Roy
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Friday, March 16th, 2018 AT 5:29 AM
Tiny
JOHNNY MILLS
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Okay I will try that. I really appreciate the information.
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Friday, March 16th, 2018 AT 5:30 AM
Tiny
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You are welcome.
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Friday, March 16th, 2018 AT 5:33 AM

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