Strange thing i have noticed recently;
99 LX i got back in may, noticed this only at night but impossible to tell in the day, and i know for the first few months i had it this never happend. here we go.......
if i am driving on the interstate, which is 95% of my driving dash lights and corner lights show no signs of being dim. however, if i get off of the highway and drive for a few minutes at any speed really under 3k rpm the dash lights will dim. if i downshift or speed up until either 3k or 3.5k rpm they will jump right back up to full brightness(there is no pattern to if 3 or 3.5 causes the spike, its just random)keep in mind this is THE ONLY RPM RANGE THAT CAUSES THIS JUMP IN BRIGHTNESS. so first thing i did was play around with the dimer know thing that since it's 10 years old i might be a little twitchy, that wasnt it. one night i came to a stop sign and turned off the headlights to see if the parking lights dim and they did, soon as i hit 3k they were normal, but under 3 they went dim. decided to check the voltage with car off and car on. 12~12.5 when off and 13.5~14 with the car running. that was tested with a multimeter and only at idle. yesterday i put in a 12v socket voltage meter that we use for our RV, it showed 13.5~14v 99% of the time, never less than 13 and only hit 14v when at high RPM. i have no idea what is causing this, alternator, battery, or something else. car starts fine, but now with the cooler days it sounds MAYBE a little slow cranking. dont really have much maintenance history on it but i do know that the battery is honda labeled, not sure of age yet. Anyone have any ideas?
99 LX i got back in may, noticed this only at night but impossible to tell in the day, and i know for the first few months i had it this never happend. here we go.......
if i am driving on the interstate, which is 95% of my driving dash lights and corner lights show no signs of being dim. however, if i get off of the highway and drive for a few minutes at any speed really under 3k rpm the dash lights will dim. if i downshift or speed up until either 3k or 3.5k rpm they will jump right back up to full brightness(there is no pattern to if 3 or 3.5 causes the spike, its just random)keep in mind this is THE ONLY RPM RANGE THAT CAUSES THIS JUMP IN BRIGHTNESS. so first thing i did was play around with the dimer know thing that since it's 10 years old i might be a little twitchy, that wasnt it. one night i came to a stop sign and turned off the headlights to see if the parking lights dim and they did, soon as i hit 3k they were normal, but under 3 they went dim. decided to check the voltage with car off and car on. 12~12.5 when off and 13.5~14 with the car running. that was tested with a multimeter and only at idle. yesterday i put in a 12v socket voltage meter that we use for our RV, it showed 13.5~14v 99% of the time, never less than 13 and only hit 14v when at high RPM. i have no idea what is causing this, alternator, battery, or something else. car starts fine, but now with the cooler days it sounds MAYBE a little slow cranking. dont really have much maintenance history on it but i do know that the battery is honda labeled, not sure of age yet. Anyone have any ideas?
