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stalling out when going over railroad tracks

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Old 09-02-2014, 12:19 AM
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tcabler
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Default stalling out when going over railroad tracks

what could this be, something loose, every time it stalls, I restart it, it has low revs and then it suddenly kicks back in and I'm off again with no problem
Old 09-02-2014, 01:27 AM
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Steve Weiner-Rennsport Systems
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Might be a bad DME relay, battery/battery connection, etc.

Need a lot more details about the car to be able to offer anything really constructive.
Old 09-02-2014, 11:01 AM
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tcabler
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The battery is only 6 mos old. I know the battery is not fastened in, but it never has been since I've owned it over the past 3yrs. and I've never had this problem. Anyways, it seems whenever I drive over the tracks, the car stalls, I'm able to restart it, but it doesn't seem to have a lot of power for about a minute and kinda jumps. Then, like I said, it kicks back in and drives perfectly at that point and has no problems unless I drive over something that jars it again.
Old 09-02-2014, 12:37 PM
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Steve Weiner-Rennsport Systems
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If the battery is not firmly bolted down, the plates are subject to a LOT of excess vibration which can shake them loose inside the case. Naturally, if they touch each other, the battery suffers an internal short which will stop the engine immediately.

I would suggest making sure the battery is secured properly so it cannot move at all.
Old 09-02-2014, 12:51 PM
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KaiB
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Originally Posted by Steve Weiner-Rennsport Systems
If the battery is not firmly bolted down, the plates are subject to a LOT of excess vibration which can shake them loose inside the case. Naturally, if they touch each other, the battery suffers an internal short which will stop the engine immediately.

I would suggest making sure the battery is secured properly so it cannot move at all.
THIS...would be a good start anyway.

If you've seen fit to drive for three years with a loose battery, I wonder what else hasn't been checked.
Old 09-02-2014, 02:26 PM
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Bill Verburg
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If the simple and more usual items are ok then take a look at the DME itself, these are getting old and we are seeing more issues w/ them, everything from cold solder issues to disintegrating plastic components.

These guys are great, Specialized ECU Repair
Old 09-02-2014, 06:35 PM
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Originally Posted by Bill Verburg
If the simple and more usual items are ok then take a look at the DME itself, these are getting old and we are seeing more issues w/ them, everything from cold solder issues to disintegrating plastic components.
if that does turn out to be the cause, here are two more options for DME repair:

1. there is a good chance it could be dodgy solder joints, so I took my DME board to a local TV/electronics repair guy and he checked over the joints for $20 and it was fixed ....

2. another option ...
http://www.911chips.com/motrepair.htm

When my DME was broken due to dodgy solder joints, the car would not keep running unless throttle was applied, but I guess it depends which solder joint(s) are broken.
Old 09-12-2014, 04:38 PM
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phatlem@mac.com
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You might want to check the fuel pump ground which is inside the front trunk. Might be why you get low revs on restart and then good running.



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