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Solenoid a electrical

First of driving along one day n truck wouldnt changed gear,she kicked in but didnt kick out.brought to garage and check engine light on and showed up solenoid a electrical. replaced solenoid but at garage they found pieces of snap rings in base i replaced replaced transmission n the check engine light still on showing solenoid a electrical. changed solenoid and still showing up solenoid a electrical n transmission is gone again. found pieces of snap rings in base pan of another transmission. this is 2 transmissions in the truck and both went same way.what is the cause of this ?

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  • Adam Hickey
    Adam Hickey Nov 08, 2012

    not sure what ****** is in her. but what does the NSBU switch do ?



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Make, model, year and equipment in the vehicle? That should be everyone's starting point on this forum!

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Which fuse is for the radio in a Buick lesabre

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SOURCE: Misfire

One question, have you replaced the ECTS (Electronic Cooling Temperature Sensor)? These cause no end of different seemingly unrelated problems on Saturns. Peice is about ten bucks and is an easy install. Just search on youtube for a how-to video. Even if that's not the problem it is reccommended to replace this peice just the same as they ALL end up going bad at some point.

If that's not a fix, start pulling plugs. Check to see if they're correctly gapped and if they have any damage/corrosion. If you're running Platinum plugs, immediatly change to a copper plug as Platinums have no place in these motors. Most people have the best luck with NGK copper.

Check to make sure that your plug wires haven't been crossed. This sounds like a plug or wire issue most likely so it has to be in that family, if the plugs are good, wires good and not crossed, sensors are fine, then time to replace your coil packs. If you've replaced everything up to the coil packs then that is most likely the cause of your dillema.

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SOURCE: 2002 Lincoln LS V8, gear shift shows E, check transmission light

sounds like tranny computer is bad take it to a grage and have a computer put on it cost about $50.00 to do this

Posted on Feb 23, 2009

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SOURCE: vehical stuck in limp mode

This only applies if you have an allison transmission, which based on the problem you are reporting I would guess that you do.

It sounds like your vehicle is stuck in limp mode. This is probably due to a bad NSBU switch(Neutral, saftey, back up) (if you have an allison transmission. Prior to 2002 the NSBU switches had a very poor seal which resulted in water intrusion into the NSBU switch causing corrosion. If the switch is corroded it is likley confusing your transmission. Unfortunatly you cannot repair the bad switch, it needs to be replaced. If you order one through Chevy it will cost around 200 dollars. I found one at merchant Automotive for 91 dollars. ( ).

The switch is relativly easy to replace. the electrical connections are the hardest part as they are glued into the switch. A little heat from a butane torch should soften it up and make the connectors slide off more easily. Other wise you may have to break the NSBU switch appart to remove the connectors.

I replaced the switch for the first time and it took me 15 minutes.

Posted on Apr 22, 2009

SOURCE: 2001 GMC SIERRA C-1500 automatic TRANSMISSION problem

Check transmission lock up selenoid.

Posted on Jul 16, 2009

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SOURCE: my automatic transmission solenoid is causing

Most transmission solenoids are located within the pan. If you replace the solenoids then it would be a good idea to change out the wiring harness that runs from the main transmission plug to the solenoids. Just lower the pan and drain it. Then, remove the one or two bolts that hold the solenoids in place. Replace the solenoids, wires, transmission filter and fluid at the same time (since you're already there). Make sure that you use a new pan gasket when you put the pan back on or it will leak fluid. Good Luck!

Posted on Nov 17, 2009

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