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Old 03-15-2013, 05:07 PM   #21
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Snowing...you can have that s....
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Old 03-15-2013, 07:10 PM   #22
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It's still snowing but the compression test complete. 175-180 PSI on all 4 cylinders performed twice on all cylinders. The compression tester made it easy. It has a pressure release button on the side of the dial.

Had to use a pair of needle nose pliers to grip the top of the adapter connector which let me back off the hose and let me carefully use the needle nose pliers to take out the adapter.

Can anyone tell me for sure that I'm supposed to get < 1v on the pigtail going to the ignition coil? I cut the pigtail out and spliced it back in after doing the test on the pins disconnected from the ignition coil. This gave me full access to check the voltage of the wires going to the ignition control module. I got a reading of 10v once, but I turned over the engine at least 100 times watching the multimeter and it was consistently the same range of voltages. It mostly ranged form 0.2v to 0.5v with "spikes" here and there ranging to 0.9

This car is kicking my ass.
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Old 03-15-2013, 07:35 PM   #23
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I may have mis-diagnosed the voltages to the coil. I was assuming the green - centre wire - is ground. Apparently this is the 12 volt wire I'm looking for and the other two are signaling wires.

I'm going to test it again. Each wire against the battery negative post.

http://easyautodiagnostics.com/ford_...cus_coil_1.php
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Old 03-15-2013, 07:35 PM   #24
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I may have mis-diagnosed the voltages to the coil. I was assuming the green - centre wire - is ground. Apparently this is the 12 volt wire I'm looking for and the other two are signaling wires.

I'm going to test it again. Each wire against the battery negative post.

http://easyautodiagnostics.com/ford_...cus_coil_1.php


This is why you should be able to delete posts. Somehow I double posted.
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Old 03-15-2013, 08:45 PM   #25
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Yup, I was testing it wrong, that's what I get for assuming the green wire is ground.

The centre wire is getting 12v until I turn the key, then it's getting < 1v. Anyway, it sounded like one cylinder fired. I'm going to get someone to crank the engine over and smell the tail pipe. Looking for a gas smell. The rail is getting gas and I replaced the fuel relay twice with no results.
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Old 03-15-2013, 08:48 PM   #26
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So I tested the spark plugs the old fashioned way. Hooked up a wire to the negative battery terminal or other ground point - Cylinder 4 was grounded on the hood - and all 4 sparks were nice strong sparks. All 4 cylinders are smelling like gas, but the cam shaft cover creates a cavity the fumes form one cylinder can make another cylinder smell like gas...

...heat gun aimed down the cylinder to dry up any fluids. I did have fluids that seemed like they were running along the spark plug threads when I started diagnosing this issue. Only concern is the effect of the heat gun on the oil...should be fine.
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Old 03-15-2013, 08:49 PM   #27
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These forums are double posting everything I type. I get a please try again in 15 seconds for every post...if I wait and re-post you get the double post above.

[edit] for the record. I've tried almost everything holding the gas pedal down, which cuts off the gas supply. IIRC.

..except when trying to start the engine, obviously.
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Old 03-15-2013, 10:35 PM   #28
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Quote:
Originally Posted by WrinkledCheese View Post
The centre wire is getting 12v until I turn the key, then it's getting < 1v.
This would be a problem. Investigate further.
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Old 03-15-2013, 11:03 PM   #29
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WC, make sure the ignition coil capacitor is connected.......it's on side the coil pack.
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Old 03-16-2013, 11:17 AM   #30
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I tested the spark another way. I connected a wire to the battery negative post, hooked the battery up to the ignition wire outisde of the block. Hung it from the hood and watched it while I turned over the engine. Indeed there is spark.

I am checking fuel again after I dry out the cylinders. I am headed outside after I post this to check for the ignition coil capacitor.

I tried googling it but couldn't find a picture to make sure I was looking at the same thing and it's hard to trace the wires with all the plastic coverings.
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