Engine not cranking over?

albaker07 · 2007-09-15T20:39:21+00:00

background: I drove 30 miles round trip today -- no trouble starting the car at either end. I parked the car and five minutes later my wife tried to start it but it would not turn over. The battery is fine -- 12 v and checked out fine under load at AutoZone. Connections were clean and were cleaned anyhow. 12 v is seen at the fuse box under the rear seat and under the hood. With the ignition switch off, the keyless entry works fine. There does not appear to be any change from normal operations when the key is turned to on, i.e., the radio works, wipers wipe, and driving lights turn on automatically (made in Canada). What seems very strange is that when the key is turned to start the instrument panel dies as does the wipers (if I have them turned on), BUT THE HEADLIGHTS KEEP SHINING UNDIMINISHED. When the switch is released back to the on position, the instrument panel come back to life after a second. The voltage at the battery when the ignition switch is turned to start drops only to 11 v. Now why is that? And where is the problem? Thank you in advance, Al

2005 BUICK LESABRE

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

AIM1

MEMBER
2 POSTS

My car turns off while i'm driving, mostly at night. Dash lights, radio, headlights all work (*the left head light starts acting wierd like it turns off while the right side stays on) but no crank when i turn the key. It has no check engine light. I tested the battery, starter, and the the alternator and they all work fine. What can the problem be?