I have a prob and hoping someone here can give me some insight. Ihave a 99 ram 1500 series, 181k miles. Yea i know i drive alot<IMG src=smileys/smiley17.gif border="0">No probs up until now. I have probs accelerating up hills. Seems like I am towing and lose speed. even the slightest incline. Also slow acceleration after 40 mph real slow even if it downshifts it still wont speed up. Lost compression?? I'd like some advice before i take it in. </P>


Thanks in advance</P>

 

Wow... that is alot of miles!! Possibly the Fuel Pump, because it's not giving enough fuel pressureat higher speeds, therefore the engine can't go faster. If you've never replaced it, it'sdone ALOT of work... LOL! That's my first thought... </P>


~Amanda</P>

 

a little more info, when trying to accelerate and give more gas, you can hear more of a hummm(?) but rpms dont change. </P>

 

I would still think it's the Fuel Pump... they tend to hum if they are really going bad. I might try changing Fuel Filter... if no fuel system maintnance has happened in 181K miles,the fuel system couldsimply be'dirty'.</P>


~Amanda</P>

 

Never thought about it, but catalytic converter

 

thats what I would look at!! your cat or o2's

 

This is what I would recommend doing as well.

 

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Is it a 4x4? I need some info to mess around with. LOL</P>