Tag: electrical

MVS logo - fist holding a wrench

Fabricate a Positive Battery Cable DIY

I had to replace the original battery cable 2 years ago because it developed high resistance between the battery terminal and the wire. I bought an aftermarket cable from IPD, labeled RAMAC (based in Minden NV), which based on the Chinese characters on some of the protective sleeving may have actually been manufactured in China. The RAMAC cable failed in service after 1.5 years in the same area as the original, with high resistance between the battery terminal and the wire. The symptoms were an intermittent no crank, with high (0.7 – 1.1 Volt) voltage drop between starter and positive battery post. Pushing with fingers sideways on the wire leading into the crimp would reduce the voltage drop to the point where the car would start.

Volvo Ignition Lock Cylinder

Volvo Ignition Lock Cylinder Replacement

Thanks to “mom” for this one!
Upon investigation of his no-start condition on his 2000 S70, “mom” found that it was his ignition switch/ lock cylinder. In this thread you will find his pictures and a link to a good write-up on how to do the replacement. Glad you got your car running again, mom!

volvo ignition switch

Volvo Ignition Switch- Diagnostic & Fix

What started out as strange electrical glitches- headlights not coming on, dash lights coming on, etc. is tied to the electrical ignition key switch (tumbler). Find in the thread linked below to diagnostic and the how-to to fix the key tumbler in early 70 series Volvos. A special thanks goes to Rob3 for finding the solution!