Chris Watkinson
Member
I have an '05 Expy with 145K miles, and a weird problem.
Wife called me frantic the other day; she picked up our kids at school and while parked with engine idling, it just stalled and died. 5 minutes later, she tried it again and it started up no problem, so went to drive to the store. Engine proceeded to stall out another 5 times, any time she slowed down due to traffic, stop sign, etc. Barely made it to a parking lot. I met her there 10 minutes later, it started right up for me, and I drove it home in 15 minutes, no problem at all. Parked it in driveway, let run for a minute, and no problem. Shrug it off.
Next day I thought maybe the throttle body had a bad set point, so I disconnected the battery for 20 minutes, reconnected and turned it on to re-learn set points... Let engine idle in Park, and 5 minutes later... Dead! Couldn't get it to turn over.
Like I said, weird. Recent factors: I removed the throttle body about 4 months ago and scrubbed it pretty clean, because we were getting a "check throttle body" message and loosing power intermittently. Also have recently had a P0430 code coming on pretty often, I think the catalytic converter may be on it's last leg. In the past we've had coils that have died out, and I've replaced them as needed, but haven't had a code for a coil in quite a while.
Thoughts?? I don't really know where to start with this one. May remove the whole air box and take a look at the throttle body again, just to make sure it's not suddenly gunked up again. After that, may try to remove/clean the downstream O2 sensors on the catalytics? I don't really know anything about checking fuel pressure, fuel pump, etc.
Oh, and our other vehicle needs about $1,200 to pass inspection too, so that's great.
Help!
Wife called me frantic the other day; she picked up our kids at school and while parked with engine idling, it just stalled and died. 5 minutes later, she tried it again and it started up no problem, so went to drive to the store. Engine proceeded to stall out another 5 times, any time she slowed down due to traffic, stop sign, etc. Barely made it to a parking lot. I met her there 10 minutes later, it started right up for me, and I drove it home in 15 minutes, no problem at all. Parked it in driveway, let run for a minute, and no problem. Shrug it off.
Next day I thought maybe the throttle body had a bad set point, so I disconnected the battery for 20 minutes, reconnected and turned it on to re-learn set points... Let engine idle in Park, and 5 minutes later... Dead! Couldn't get it to turn over.
Like I said, weird. Recent factors: I removed the throttle body about 4 months ago and scrubbed it pretty clean, because we were getting a "check throttle body" message and loosing power intermittently. Also have recently had a P0430 code coming on pretty often, I think the catalytic converter may be on it's last leg. In the past we've had coils that have died out, and I've replaced them as needed, but haven't had a code for a coil in quite a while.
Thoughts?? I don't really know where to start with this one. May remove the whole air box and take a look at the throttle body again, just to make sure it's not suddenly gunked up again. After that, may try to remove/clean the downstream O2 sensors on the catalytics? I don't really know anything about checking fuel pressure, fuel pump, etc.
Oh, and our other vehicle needs about $1,200 to pass inspection too, so that's great.
Help!