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2004 gmc envoy_sle
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3 Posts
Discussion Starter #1
I just replaced the transmission in my 2004 gmc envoy. i drove it into the shop so it was running ok. its a no crank/ no start condition. i noticed the lights dont come on when i open the door, and there is no radio or keyfob actions. the cluster lights up when i turn the key but nothing else happens. i tried in nuetral and in park. i rechecked all electrical connections and they are ok. this is a salvage yard transmission. any guesses?
 

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2004 chevy trailblazer_lt
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29 Posts
Going through an identical problem, however I did not replace my transmission, but I am not getting 12V at the starter relay from the Neutral Safety Switch. I already replaced the switch. I had it sent to a shop to take a look at it.

But start looking at the Starter relay for the 12V coming from the Neutral Safety Switch when trying to crank/start.
 

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2004 gmc envoy_sle
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3 Posts
Discussion Starter #3
Got It!

Not sure why but a simple battery disconnect and reconnect fixed it!....odd.:weird:
 

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2009 chevy
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6,431 Posts
Disconnecting the battery has reset something, perhaps the PCM.

Any possibility, the P/N switch might need a little adjusting?
 
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