Question about 2001 Chevrolet Silverado 1500

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What do the 4 prongs in an ignition coil represent?

01 chevy silverado, 5.3. I want to test the ignition coils? How do I read the prongs on my multitool reader in regards to ohms, etc?

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The ignition coil has two separate windings. They are not connected. Start by testing from one terminal to connection to another. If this works then the two others should be the other circuit. The primary coil has a low resistance, up to 10 ohms. The secondary winding has a higher resistanse, up to 100 ohms or so. If you measure Mohms then the coil jhas a break.

Posted on Nov 12, 2018


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Posted on Jan 02, 2017



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SOURCE: 1990 Chevy Silverado Pick-up. No spark from the plugs.

How about the MAP SENSOR? Do you check it out?

Posted on Jun 25, 2009


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SOURCE: glow ignitor works, but no flame ignites. ohmed out gas valve coil with wires disconnected = OL is it my coil?

You have a bad flame sensor. Replace it.

Posted on Sep 18, 2009


  • 3 Answers

SOURCE: ford f-150 ignition coil testing

get them from auto zone change them out one at a time . after each one start up and see if it makes a difference or not . you can always take them back.

Posted on Jan 01, 2010


Michael Thorpe

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SOURCE: Coil and Ignition Module replacement BMW R80 RT

not realy if it runs it runs,,,but if you had looked on
e-bay "there be coils there!" for the bidding its well worth a look if you need parts.. just type in bmw r 80 parts,,,then let loos your wallet!!!

Posted on Mar 03, 2010



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SOURCE: how do you test ignition coil for 01 flhr

Disconnect all wires from the coil. Use a DVOM (Digital Volt Ohm Meter) to test the coil. Connect one meter lead (either one) to one of the small primary terminals on the coil and the other meter lead to the other primary terminal. Set the meter's function switch to OHMS, R x 1. You should read between 2 -3 ohms. Any higher or lower, the coil is probably bad.

Now, you may can remove the spark plug wires from the plugs and insert another set of plugs in the wires. Make sure the plugs are grounded on the heads. Turn the switch on and turn it back off. When you turn the switch back off, you should see a single spark at the plugs.

Good Luck

Posted on Nov 16, 2010

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Hi there:
Here is a picture showing the EGR valve on the 4.8 Litre V8. The numbers below go with the picture. The arrow points to the front of the truck.

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