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Username Post: 97 5.7L crankshaft position sensor problem        (Topic#164706)
turtleabel 
Member
Posts: 20

Loc: utah,usa
Reg: 11-28-05
07-15-07 04:09 PM - Post#1208937    

after driving for a while rpm guage goes crazy up and down rough ride can shift into nuetral and smooth out the rpm then throws code P0339 changed cks sensor to no prevail can anyone tell me what else could be wrong thanks

 
Low priced Genuine GM Auto Parts
CDAUSA 
Needs to Get Out More Member
Posts: 12906

Loc: Texas Panhandle
Reg: 12-31-01
07-15-07 04:23 PM - Post#1208944    
    In response to turtleabel

Pull the wire connector back off the CPS, look really hard at those pins, use a light if you have to, make sure all are clean and tight. Pull on the wires firmly, but not hard enough to bend the lock. Corrosion in the wire end can cause this.

 
turtleabel 
Member
Posts: 20

Loc: utah,usa
Reg: 11-28-05
08-02-07 02:25 PM - Post#1222851    
    In response to CDAUSA

thanks cdausa i use some electrical cleaner on the plug and so far so good runs great again no codes being thrown thanks again

 
CDAUSA 
Needs to Get Out More Member
Posts: 12906

Loc: Texas Panhandle
Reg: 12-31-01
08-02-07 07:38 PM - Post#1223075    
    In response to turtleabel

Good deal, keep us updated, hope it is fixed though.

 
Low priced Genuine GM Auto Parts
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