I am wondering if I have a failing ignition coil. It seems like I had decent power and now the engine is louder, tranny shifts more, and Jeep seems to have less power. I put my DMM on the 200 Ohm scale and measured across the coil and got 1.8 ohms. After it cooled down I got 2.1 ohms. A couple of times I have gotten a 3-4 ohm reading but if I test it again it will be about 2 ohms. Any of these values are well above spec of .85-1.15 Ohms.
The secondary side is better, typically 13.5-14.5 k Ohms.
I went down to NAPA and got a Echlin coil and strangely enough it tests the same 2.1 ohms.
So I wonder if my DMM is wrong or both coils are bad.
The secondary side is better, typically 13.5-14.5 k Ohms.
I went down to NAPA and got a Echlin coil and strangely enough it tests the same 2.1 ohms.
So I wonder if my DMM is wrong or both coils are bad.
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