battery, alternator or starter motor?

[richardpalinkas]

hey, for a while now i have noticed this problem, when i start my car from cold it starts perfectly with no trouble. however, when the car has heated up, the car will have like 3 realy slow cranks before it will start, and its slowly getting worse, today it nearly did not start.

i checked the voltage of my battery when car is off, which was around 12 ish, and when running it was at high 13's, but during the period when i crank it over and the car is hot, voltage dropped down to like 7, 8, 9 volts.

just wondering what the normal voltage drop should be, and what i should look at replacing. the battery is only a year old, and i dont want to replace anything that i dont need to.

thanks for your help.

richard

[Not_An_Abba_Fan]

Check the positive wire that goes to the starter motor, make sure it is tight and that the bolt doesn't actually move in the solenoid.