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 5 2014, 12:13 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 this morning, I checked over everything again:
1. Bullet Fuses in relay board are fine. 2. Bullett Fuses under dash are fine. 3. Connections to coil are fine (no loose wires at crimp). 4. Spark plug wires and coil wire are less than 6 month old Clewett wires from PP. Should be fine. 5. I did a spark test yesterday, and did get some spark. Not sure on if it was "weak" or not but there was spark. So, if motor cranks and I got spark that leave fuel as suspect. Question about fuel pump operations: 1. When you turn the key, should you hear the fuel pump kick in? This is a 74 2.0L with fuel pump moved up front. I thought I heard it yesterday, but I didn't hear anything this morning. 2. How do I go about checking the fuel pump electrically? Later this afternoon, I plan on removing the underbelly pan and having a look at the connections to the pump (loose wire?) and looking to see if the hoses are not crimped. The best part is I just fueled up on gas and have 3/4 tank full which would make replacing the fuel pump that much more fun. |
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