Bimmer Nut Ed
01-07-2007, 04:58 PM
Anyway, daughter calls and tells me her 525 won't start. K, I come home try it, turns over, but nothing. Has a weird hesitation like it thought for a second to start, but really, no firing of any cylinders.
Hmm, now I've been with these cars a while, so naturally I think to check fuses, and I jump the fuel pump relay to hear the fuel flow up front into the engine compartment, and this all seems fine.
Hmm, without doing anything much else, I simply asume it's the crank position sensor. After all I remember when it went out on my m30 535, it had that same exact little hesitation when trying to start. Eh, it's old enough, prolly could use a new one anyway. So I order one, wait a week, and today I install it.
Darn thing won't start, same sounds, same old everything. wtf now
OK, check the fusable link, see that it fine, but I jiggle the hot wire its on and notice that it's loose on the battery. The post is all clean, only needs a little tighhtening. So I tighten it and the darn car still won't start.
OK, we've been trying to start this car for about two weeks now. I try to start it one last time before checking fuel line pressure and pulling plugs/coils to check for spark. I decide to pump the gas pedal and now I notice it actually fires a couple times. Still no start though. I try again, pump the pedal like mad, and she's starting to go! Holy cow, whats with this! It's still not running nicely, it's trying to stall, but I keep up the pumping and get her to run OK at about 2-3k RPM. I hold it there till it warms a bit, let her come back down to idle, and everythign is fine! wtf, what did I fix, was it flooded or something to begin with, was it the loose wire on the battery terminal, was it actually the CPS. It all seems so weird, it's like I'll never know what it actually was.
BTW, I did try new main relays and fuel pump relays with no success. Right now it actually has the original relays back installed.
Anyway, no big deal, this is really just an observation. I don't need help. Just thought I'd share.
Happy new year guys!
Hmm, now I've been with these cars a while, so naturally I think to check fuses, and I jump the fuel pump relay to hear the fuel flow up front into the engine compartment, and this all seems fine.
Hmm, without doing anything much else, I simply asume it's the crank position sensor. After all I remember when it went out on my m30 535, it had that same exact little hesitation when trying to start. Eh, it's old enough, prolly could use a new one anyway. So I order one, wait a week, and today I install it.
Darn thing won't start, same sounds, same old everything. wtf now
OK, check the fusable link, see that it fine, but I jiggle the hot wire its on and notice that it's loose on the battery. The post is all clean, only needs a little tighhtening. So I tighten it and the darn car still won't start.
OK, we've been trying to start this car for about two weeks now. I try to start it one last time before checking fuel line pressure and pulling plugs/coils to check for spark. I decide to pump the gas pedal and now I notice it actually fires a couple times. Still no start though. I try again, pump the pedal like mad, and she's starting to go! Holy cow, whats with this! It's still not running nicely, it's trying to stall, but I keep up the pumping and get her to run OK at about 2-3k RPM. I hold it there till it warms a bit, let her come back down to idle, and everythign is fine! wtf, what did I fix, was it flooded or something to begin with, was it the loose wire on the battery terminal, was it actually the CPS. It all seems so weird, it's like I'll never know what it actually was.
BTW, I did try new main relays and fuel pump relays with no success. Right now it actually has the original relays back installed.
Anyway, no big deal, this is really just an observation. I don't need help. Just thought I'd share.
Happy new year guys!