Diagnose no start, Update: Need Relay board -> 74 2.0L |
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Diagnose no start, Update: Need Relay board -> 74 2.0L |
boxsterfan |
Jul 4 2014, 01:47 PM
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#1
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
On my way home on the freeway last night, my 74 2.0L just died travelling along at 70 MPH. Had her towed home.
Looking at it today, it appears there is no spark. If I turn the key, I can hear the fuel pump so seems like I got power there. I have a newer Bosch coil from PP that I put in a few months ago (it's one of those silver looking ones but a Bosch unit). I replaced the coil back with the old one and still no start. Car cranks, but no fire. The car has Pertronix in it. I suspect this is what died. Does that sound right to the folks here? |
boxsterfan |
Jul 4 2014, 06:16 PM
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#2
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914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
So I checked for spark by pulling the #1 plug wire, hooking up to spark plug directly, vampire clip in the spark end of the plug and a wire that I ground to the body. I had a helper cranking the motor for me.
I saw spark there, but is sure seemed awful weak. I've never seen the spark on a plug outside the motor. And of course, my ground could have been poor also as i was just rigging this up to see if there was any spark. How "strong" should the spark be or look? Otherwise I got spark (weak?), and I hear the fuel pump running, then what's next? This is a 74 with the "seatbelt relay" under the passenger seat. These things are famous for causing issues. One time, mine caused the car to not start (except the symptom was that it wouldn't even crank). I ended up re-seating all the connections under there (6 months ago) and had been fine until now. Otherwise? I dunno... (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) |
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