Intermittent no start condition

John Nechiporchik · 09-19-2013, 09:44 AM

Mike/Joe/Kirk,
I did the test of the crank trigger as Joe stated. Simple and effective.
Next, I spoke to MSD and the tech rep indicated the ohms reading of the MSD pickup (test leads on purple and green wires) should be between 65 and 85 ohms. This is for the non magnetic pick-up.....magnets are in the wheel, not the sensor.

Will test mine tonight along with using my newly acquired noit light to test injectors.
Also got a few other areas to check (connections, grounds etc) tonight.

buzzinhalfdozen · 09-19-2013, 12:50 PM

Rich , I believe there is a special coverage for the wheel speed sensors you can check with your local GM dealer as it varies year to year. We clean and apply a compound to the knuckle so rust doesn't redevelope. John, good deal testing this stuff is not hard at all, but does require a few items, sounds like you're on top of it. Joe Oh and sorry bout that wrong resistance spec, I was shooting from the hip on that, which is the spec GM uses withtheir sensors must have got stuck in my head.

09-19-2013, 09:44 AM	#1
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 316 Likes: 85 Liked 13 Times in 7 Posts	Re: Intermittent no start condition Mike/Joe/Kirk, I did the test of the crank trigger as Joe stated. Simple and effective. Next, I spoke to MSD and the tech rep indicated the ohms reading of the MSD pickup (test leads on purple and green wires) should be between 65 and 85 ohms. This is for the non magnetic pick-up.....magnets are in the wheel, not the sensor. Will test mine tonight along with using my newly acquired noit light to test injectors. Also got a few other areas to check (connections, grounds etc) tonight.

09-19-2013, 12:50 PM	#2
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: Intermittent no start condition Rich , I believe there is a special coverage for the wheel speed sensors you can check with your local GM dealer as it varies year to year. We clean and apply a compound to the knuckle so rust doesn't redevelope. John, good deal testing this stuff is not hard at all, but does require a few items, sounds like you're on top of it. Joe Oh and sorry bout that wrong resistance spec, I was shooting from the hip on that, which is the spec GM uses withtheir sensors must have got stuck in my head. __________________ Joe Buchanan SS/BX 3117 Last edited by buzzinhalfdozen; 09-19-2013 at 01:22 PM.