1999 Pontiac Grand Am won't start

VPOPLAW

MEMBER
1999 PONTIAC GRAND AM
4 CYL
FWD
AUTOMATIC
189,000 MILES

I went to start my car a few weeks ago and unfortunately it wouldn't start. It turned over and the headlights came on, but thats it. It sounded like the battery was dead so I hooked it up to the charger. The charger said it had 75% charge, but I went ahead and charged it to 100%. It started later that day and a few days after. However, I went to start it yesterday and it did the same thing. When I hooked up the charger it said it had 100% charge. I went ahead a left the charged plugged up for a few hours, but it still won't start. The headlights and dashlights come on and aren't dim. I'm not sure if it is relavent but it has been in the low 20s for a few days, and it the temp was in the negatives last time this happened. The car is in a garage. Any help on this would be appreciated.

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

If its cranking over with no problem and refusing to start disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 in away from ground have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor /distributor pick-up coil, ignition control module, ECM, Ignitor camshaft and crankshaft sensors- Note: If it doesn't apply disregard it