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storminsince73
11-05-2006, 08:10 PM
03 Silverado, 4800 Vortec, has been "float checked" in a pond... she failed. :eek:

bought her with a rebuilt title. I know she has a new body control module, and a couple of other assorted sensors.

today, I drove her about 145 miles, stopped and visited some folks for a while, then came out and attempted to leave. key in, lights on, dinger dinging, radio plays... no start, no turn over, nothing. when I release the key, I heard what can best be described as a crackling behind the dash, possibly some small relays freaking out.

ok, hood up, checking in the dark... battery connections are not as tight as they were when I put that battery in 2 wks ago. I am thinking "A-HA!!!", so I tighten the cables, get in the cab, turn the key... same indications as before. :nono:

I have NO idea where this idea came from, but I keep a code reader behind the seat in a bag with a dvm :cool: so I get his idea to read and clear the codes, and see if it would make a difference. :think: It had the same codes as usual, P0420. I erased, hit the key, and she fired right up! :cheer:

Does anyone have an idea what is up with that?

Norm

storminsince73
11-24-2006, 11:11 AM
Bump. ANY ideas? C'mon now, I'm sure someone has an idea at least.