I just bought a 1997 ram 2500 360 4x4 auto with 207000 miles on it. Truck has a skyjacker 5.5 in lift, 3" body and 2.5" Susp. It has 315/75 R16's tires and it's a complete dog.. And i mean there's slight inclines around my house on parts of a main highway that i go a back way to avoid because it's a flatter backway. Now should I assume the engine is just tired and replace or is it the lift and tires, or plenum gasket,or???? It has dana 60's under it with 4.11 gears. I would think this should be snappy low end??

Please help or guide me

 

oh and the exhaust was replaced with a glasspack and a short tailpipe or downspout under the center of truck. Could it be a back pressure loss causing it to feel like a dog?

 

Have you checked the plenum or checked for a clogged cat converter?

 

havent really checked anything yet. Only thing I can say it idles nice but just a dog. I just got this truck this past sat. and have been concentrating on getting the body parts it needs but this weekend wanna start troubleshooting the power issue. I know the plugs are way past due for change

 

WHats the best way to check the converters?

 

Remove the front 02 sensor. Everything you need to know is in the plenum sticky.

 

how do I find that sticky

 

It's called the "End-all, be-all plenum thread". First thread in this section. Right at the top. Or search "plenum".

 

With 207K if it's the oem converter it needs to be changed. Change plugs cap-rotor wires if needed. Check fuel pressure and compression. Do you have any codes?

 

Check engine light just came on last night so guessing I do