No Tranny Codes, Not pumping?

[aking284]

Hey Gentlemen!

Question...

My 97 C1500 will NOT move AT ALL! Nothing when put in drive or reverse HOWEVER, upon jacking up the truck, when shifted to the 3,2,1 gears, the back tires show slight slight movement (when on ground, they do nothing).

Also, the pump shows no sign of activity?
Checked tranny fluid, thats good.
Rpm's increase like nomal, just no movement.
No metal pieces or anything that looked as if the tranny gears where malfunctioning when I removed the pan.
Code reader only throws one code, P0304 (02 sensor).

Thanks for the help guys!

 

[Komet]

Does the issue reproduce when you replace the transmission with a known good unit?

 

[618 Syndicate]

Sounds familiar...

RPM Increases, Truck Wont Budge!

Hey guys, A female here, so take it easy lol My 97 C1500 suddenly completely quit accelerating as I was going down the highway. Pulled over, checked my tans fluid, it was good. Let truck sit for a few, started it back up, pressed the gas...RPM would increase however the truck wouldnt budge an...

www.gmt400.com

 

[aking284]

Sounds familiar...

RPM Increases, Truck Wont Budge!

Hey guys, A female here, so take it easy lol My 97 C1500 suddenly completely quit accelerating as I was going down the highway. Pulled over, checked my tans fluid, it was good. Let truck sit for a few, started it back up, pressed the gas...RPM would increase however the truck wouldnt budge an...

www.gmt400.com

yes, similar to my old post, just with updates

 

[618 Syndicate]

yes, similar to my old post, just with updates

Did you follow the advice given in that thread? If so, what did you find? If not, do so and report back.

 

[aking284]

Did you follow the advice given in that thread? If so, what did you find? If not, do so and report back.

yes, I did! This is all I have found so far...
Nothing comes out of the top transmission line going into the radiator

 

[vr1967]

Quick glance thru the other thread and didn’t see this asked, but is the torque converter still bolted to the flexplate? Should be 3 bolts attaching the two together.

 

[NickTransmissions]

yes, I did! This is all I have found so far...
Nothing comes out of the top transmission line going into the radiator

Pump is no good (rotor has broken up inside of it). Time to pull the trans for overhaul.