Have a 1988 porche 944. Will not start?
ALT. OR BATTERY TEST Don’t throw parts at a problem, diagnose first. If possible put a code reader on it to point out the problem. If not, read on, I’ve included a number of possible issues. The starter needs a lot of amperage to crank, dash lights & fuel pump do not, so a weak battery or dragging starter can cause a no-spark/no-start. But, before going to procedure below, lightly rap on all relays with a screwdriver handle, a sticking relay can cause all kinds of problems. Here is the test procedure for determining battery or alternator problem after requiring a jump start. Note, requires a voltmeter [$3.50 at Harbor Freight] 1] Check battery voltage on non-start vehicle. Will probably be under 12V. Verify good clean connections, look for cracked corroded or loose terminals. 2] Jump start. Note, always have the jumper vehicle running when performing a jump start, sounds basic but I actually had a friend who argued it should not, meaning he would be jumping with less voltage & could st
