luchy72v
New member
- Joined
- Nov 11, 2013
- Location
- New Hampshire
Hiya guys
Okay so, I have this 1991 245 that has developed an intermittent stalling/no start issue. I have so far figured out that it is the fuel pump...when I put in the key and don't hear it hum, the car won't start. Sometimes it hums, sometimes it doesn't. Sometimes it hums and then it starts and runs for a couple of seconds and then it stalls out and I'm not hearing the hum anymore.
"Jumper the #4 and #6 fuses!" the internet helpfully offers. "If the fuel pump kicks in, your fuel pump relay is bad!" Well sure enough, when I attach alligator clips to those two the fuel pump kicks on and I can drive it just fine with no stalling. So I bought a brand-new relay from DaveBarton.com and...the problem persists.
At this point I am suspecting the ECU, but that is a new level of expense with the whole "replace the part and see what happens" technique, so I thought I'd ask y'all if that's very likely to be it, or if there are other elements in the chain between those two fuses that could be causing it. This is the first car I've ever worked on and my troubleshooting ability is limited so I am wondering if this is the right point to let a mechanic have at it...or if it really will be simply plug-n-play ECU replacement.
Thoughts? Thanks.
Okay so, I have this 1991 245 that has developed an intermittent stalling/no start issue. I have so far figured out that it is the fuel pump...when I put in the key and don't hear it hum, the car won't start. Sometimes it hums, sometimes it doesn't. Sometimes it hums and then it starts and runs for a couple of seconds and then it stalls out and I'm not hearing the hum anymore.
"Jumper the #4 and #6 fuses!" the internet helpfully offers. "If the fuel pump kicks in, your fuel pump relay is bad!" Well sure enough, when I attach alligator clips to those two the fuel pump kicks on and I can drive it just fine with no stalling. So I bought a brand-new relay from DaveBarton.com and...the problem persists.
At this point I am suspecting the ECU, but that is a new level of expense with the whole "replace the part and see what happens" technique, so I thought I'd ask y'all if that's very likely to be it, or if there are other elements in the chain between those two fuses that could be causing it. This is the first car I've ever worked on and my troubleshooting ability is limited so I am wondering if this is the right point to let a mechanic have at it...or if it really will be simply plug-n-play ECU replacement.
Thoughts? Thanks.