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Old 07-23-2011, 06:13 PM   #1
agent orange
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Need Help! Where to start on my 66?

My truck has been running good for several months and today I was driving and all of a sudden it just quit on me. Luckly I was only a couple blocks when this happened. So the engine turns freely (straight 6, but not sure what engine i have), but I dont think i am getting any spark. How do i check? fuel pump? coils? Where do I begin? thanks guys
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Old 07-23-2011, 07:32 PM   #2
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Re: Need Help! Where to start on my 66?

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Originally Posted by agent orange View Post
My truck has been running good for several months and today I was driving and all of a sudden it just quit on me. Luckly I was only a couple blocks when this happened. So the engine turns freely (straight 6, but not sure what engine i have), but I dont think i am getting any spark. How do i check? fuel pump? coils? Where do I begin? thanks guys
same thing happened to me when i had my 66...turns out it was voltage regulator...$40 fix from the local auto parts chain, so start there
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Old 07-23-2011, 07:44 PM   #3
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Re: Need Help! Where to start on my 66?

I would check voltage at the coil to start. Make sure you have 12v at the coil, it not, back up to the ignition. Depending on the age of the ignition, that may be bad.
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Old 07-23-2011, 08:29 PM   #4
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Re: Need Help! Where to start on my 66?

i can help you check it out tomorrow
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Old 07-23-2011, 08:39 PM   #5
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Re: Need Help! Where to start on my 66?

Has it got the original Points type Distributor?
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Old 07-23-2011, 08:47 PM   #6
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Re: Need Help! Where to start on my 66?

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I would check voltage at the coil to start. Make sure you have 12v at the coil, it not, back up to the ignition. Depending on the age of the ignition, that may be bad.
I agree. If no power at the + coil, run a wire to the + coil from battery. Try to crank. If starts, bad ignition switch.
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Old 07-23-2011, 08:49 PM   #7
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Re: Need Help! Where to start on my 66?

If you don't think you have spark, pull a plug and with it attached to the wire, lay it on the valve cover and have someone else twist the key. It should be a little blue bolt of lightning across the terminals. A weak spark will be orangish or it may not even spark at all. Do this and report back.
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Old 07-23-2011, 08:57 PM   #8
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Re: Need Help! Where to start on my 66?

Ok, sorry, let me give you something else to check. With the air cleaner removed look down the throat of the carb and pump the gas twice. Do you see gas squirting? If you do thats good and move forward. If not lets us know.
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Old 07-23-2011, 11:46 PM   #9
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Re: Need Help! Where to start on my 66?

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Has it got the original Points type Distributor?
I think so...I bought new points but they don't look the same as the old ones. The new condenser does not have a wire compare to the old one. This new condenser is in one piece...i believe i got the wrong one....arrrg!
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Old 07-23-2011, 11:49 PM   #10
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Re: Need Help! Where to start on my 66?

Thanks for the replys...I will check all the possibilities tomorrow morning....
Also, If I spray starter fluid into the carb should the truck start if it's not the coil,voltage reg...etc????
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Old 07-24-2011, 12:10 AM   #11
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Re: Need Help! Where to start on my 66?

Yes, the truck will run for about one to two seconds on a good dose of starting fluid if fuel delivery is the only problem. It cant hurt to try it. If nothing happens then check for spark.
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Old 07-24-2011, 01:02 AM   #12
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Re: Need Help! Where to start on my 66?

Some of the new replacement points have the condensor right on the points as one unit..
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Old 07-25-2011, 03:28 PM   #13
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Re: Need Help! Where to start on my 66?

Last question...I still can't get the truck to start...However, I took the distributor cap off and crank the engine and noticed the rotor is not moving (spinning)...Does that mean my distributor is Bad? My coil is good, replaced points/condenser and rotor.
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Last edited by agent orange; 07-25-2011 at 03:33 PM.
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Old 07-25-2011, 03:33 PM   #14
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Re: Need Help! Where to start on my 66?

Timming chain broke or distributor gear broke
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Old 07-25-2011, 04:23 PM   #15
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Re: Need Help! Where to start on my 66?

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Timming chain broke or distributor gear broke
Great! Thanks sick5
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Old 07-26-2011, 01:34 AM   #16
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Re: Need Help! Where to start on my 66?

i think i might have an extra distributor....ill give you
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