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Old 10-11-2021, 05:52 PM   #1
BeeDoo
 
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Default New D21 Owner -- Suggestions on getting it running

Long story short, a friend an I scored a 1986 D21 for next to nothing. It hasn't run in 6 months.

To be clear, I am at best a novice mechanic....so bear with me.

We hooked up the battery, cranked it over, it turned but wouldn't start.
Tried pouring gas in the intake on top of the engine. It fired up and ran for a few seconds on the gas we poured in. Repeated that a few times, but couldn't keep it running.

I can hear the fuel pump (humming I guess) at the tank, so it seems to be getting power working.

I checked the line between the fuel filter and the engine -- it seems to be full of fuel.

What are my next steps?
Drain the gas and just try new gas -- it's been sitting a while?
Replace fuel filter?
Replace fuel pump?
Something else?

Any help greatly appreciated.... I'll post some pics later.

Thanks in advance..
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Old 10-11-2021, 07:10 PM   #2
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Download the factory service manual(FSM) and do a full preventative maintenance job on it first to ensure all of the maintenance is up to date. Then read up on the fuel delivery circuits, check resistance between the injector pins for the solenoids and voltage at the harnesses. Changing of the fuel filter is included in the maintenance, so I would drain the old fuel out and pour in a few gallons of fresh fuel. Check the timing to ensure that it’s correct, along with a new cap and rotor, spark plugs, oil and filter. I would do a continuity test and check the Ohms on the spark plug wires. This is included in the regular maintenance, which a D21 requires to run correctly. You might need a new distributor(dizzy), if it hasn’t been changed in a while.

Others will chime in with additional support to get you up and running. But start with the regular maintenance and the items I mentioned to ensure that’s taken care of so you can rules items out for the ‘no start’ condition.

And, Welcome to IN !
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Old 10-11-2021, 08:58 PM   #3
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Quote:
Originally Posted by BeeDoo View Post
What are my next steps?
Drain the gas and just try new gas -- it's been sitting a while?
Replace fuel filter?
Replace fuel pump?
Something else?

Any help greatly appreciated.... I'll post some pics later.

Thanks in advance..
Welcome to IN...

Next step? DL the FSM at the link in my sig.


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Quote:
Originally Posted by Deerhurst
What he is saying is the aerodynamics of a D21 is a brick in the wind.
Probably at least as bad as a Jeep so worse than a cow.
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Old 10-11-2021, 09:16 PM   #4
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I'd start at fuel filter.



Is it squirting fuel into the throttle body?



NGK only for plugs and wires. It'll thank you.
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Old 10-11-2021, 10:20 PM   #5
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First, do like 89'HBV6 said, and download the service manual from his signature link.
Second, do like PorknBeans said and go through the troubleshooting steps in the fuel section of the manual.



You will need a multi-meter to test for voltage and resistances when checking the components.


If you think the fuel may be stale, then yes, change it. A new filter can't hurt, as Deerhurst and others pointed out.


If it starts on a squirt of fuel, then you can rule out spark and compression for now.
Hopefully it's just corroded wires at the infamous 2 into 1 junction that is hidden in the ejector harness.
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Old 10-11-2021, 11:53 PM   #6
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Thank you all for the quick replies. And for the service manual! It's downloaded and on my desktop now.

Will start with fuel filter and go from there..
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Old 10-12-2021, 12:00 AM   #7
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Here are some pics of the truck. Someone has put some work into making it kind of a camping-style truck.








Attached Images
File Type: jpeg IMG_6034.jpeg (1.66 MB, 48 views)
File Type: jpeg IMG_6033.jpeg (1.72 MB, 50 views)
File Type: jpeg IMG_6035.jpeg (2.34 MB, 47 views)
File Type: jpeg IMG_6036.jpeg (2.23 MB, 48 views)

Last edited by jp2code; 10-12-2021 at 01:46 PM.
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Old 10-12-2021, 12:25 AM   #8
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Nice truck!

Lifted, good on/off road tires, good off road height, Class III platform hitch, camper shell, straight body panels, original decals & a V6 motor! Is it a 4WD? I’m assuming it is.
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Old 10-12-2021, 12:58 AM   #9
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I'm seeing 2 shifters... 3rd PIC.

Nice! V6 SE standard cab 4WD... looks all original!
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Quote:
Originally Posted by Deerhurst
What he is saying is the aerodynamics of a D21 is a brick in the wind.
Probably at least as bad as a Jeep so worse than a cow.
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Old 10-12-2021, 01:27 AM   #10
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Single cab V6 trucks are not real common. Looks like an awesome little rig!



Keep us posted on how it goes!
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