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Thread: 4g32 Auto/Low idle in drive issue?

  1. #1
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    Dec 2012
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    4g32 Auto/Low idle in drive issue?

    I recently bought a 76 Arrow, Automatic 4g32. I did a complete tune up today. It had very old gas and had been sitting for some time. Changed out gas, plugs, wires, filters, oil, dis cap and rotor. Fires fine, idles good in park, but as soon as you put it into drive it bogs way down to the point where if you dont keep your foot on the gas it stalls. Anyone have any idea what maybe causing this. Thanks for the help!

  2. #2

    Re: 4g32 Auto/Low idle in drive issue?

    whats your idle speed? have you set it correctly (in Drive)?

  3. #3
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    Re: 4g32 Auto/Low idle in drive issue?

    It's set correctly. I have messed with the timing and idle speed. It made no difference other than the engine hitting harded when put in gear with the timing all the way up. All the EGR hoses are off and I found a vaccum line disconnected. Could the EGR be the problem? Here's what I'm working with. You can see the vapor separator isn't hooked up from the picture.


  4. #4
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    Whidbey Island, WA
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    Re: 4g32 Auto/Low idle in drive issue?

    Are you running the stock carb? I'm surprised you haven't had vapor lock issues with the separator not hooked up lol. It would be easier to see vacuum hose routing with the intake cover off the carb and a more direct photo looking down at the carb once the intake is off.

  5. #5
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    Re: 4g32 Auto/Low idle in drive issue?

    I'm running the stock carb. Weather here was bad today so i'll take it apart tomorrow morning and post more detailed photos. First car i've worked on by myself so i'm still learning.

  6. #6
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    Re: 4g32 Auto/Low idle in drive issue?

    One of the lines has been blocked off


    Both of the lines connected to that white splitter are coming from the carb.



    Something else blocked off next to the distributor.


    On top it says "To Tank" but there is just a hole and nothing going "To Tank"


    The top hose in the first picture in my earlier post is shooting oil into the filter. The bottom hose is shooting rust flakes and other crap.


    Sorry for my lack of tech talk. I truly have no idea what I'm doing, lol.

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