# 2003 Jeep Cherokee loses power at high rpms **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** cherokee, jeep\ **Created:** [March 20, 2018, 11:14pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087 "2018-03-20T23:14:24Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![IsraelMyeni](https://avatars.discourse-cdn.com/v4/letter/i/97f17d/32.png) [@IsraelMyeni](https://community.cartalk.com/u/IsraelMyeni)\ **Post date:** [March 20, 2018, 11:14pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/1 "2018-03-20T23:14:24Z")
under 300km , this car lights up the engine light and tends to loose power. this happens at high revs especially when overtaking. a rattling noise in the engine followed by power loss. this vehicle gets unsafe in highway traffic. Somebody please help! ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [March 22, 2018, 2:08am UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/2 "2018-03-22T02:08:09Z")
Post the diagnostic codes read out from the engine computer here and folks will probably have some ideas what’s going on. Could be a clogged cat for example. But there are many other possibilities. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [March 22, 2018, 4:50pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/3 "2018-03-22T16:50:59Z")
> [@IsraelMyeni](#): > > under 300km What does this mean??? ---
**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\ **Post date:** [March 22, 2018, 7:17pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/4 "2018-03-22T19:17:43Z")
If the Check Engine light is flashing (I get the feeling it is), you need to pull over and shut off the motor ASAP to prevent damage to the catalytic converter. ---
**Author:** ![IsraelMyeni](https://avatars.discourse-cdn.com/v4/letter/i/97f17d/32.png) [@IsraelMyeni](https://community.cartalk.com/u/IsraelMyeni)\ **Post date:** [March 22, 2018, 9:42pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/5 "2018-03-22T21:42:51Z")
Thanks for the advise. I think the catalytic converter is already damaged as fumes fill the cabin while driving. I will have the scan done and will return with the codes. This is great advice George! ---
**Author:** ![pyrolord314](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@pyrolord314](https://community.cartalk.com/u/pyrolord314)\ **Post date:** [March 23, 2018, 1:37pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/6 "2018-03-23T13:37:33Z")
> [@IsraelMyeni](#): > > Thanks for the advise. I think the catalytic converter is already damaged as fumes fill the cabin while driving. I would stop driving it and take it to a mechanic in this case…or if not you need to drive with your windows down so you don’t kill yourself! ---
**Author:** ![IsraelMyeni](https://avatars.discourse-cdn.com/v4/letter/i/97f17d/32.png) [@IsraelMyeni](https://community.cartalk.com/u/IsraelMyeni)\ **Post date:** [April 28, 2018, 9:58pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/7 "2018-04-28T21:58:16Z")
Problem resolved. When the engine was changed on this vehicle. some wires linking the gearbox to the engine processor was pinched thereby causing malfunction of engine computer - hence check engine. light ---
**Author:** ![IsraelMyeni](https://avatars.discourse-cdn.com/v4/letter/i/97f17d/32.png) [@IsraelMyeni](https://community.cartalk.com/u/IsraelMyeni)\ **Post date:** [April 28, 2018, 10:01pm UTC](https://community.cartalk.com/t/2003-jeep-cherokee-loses-power-at-high-rpms/114087/8 "2018-04-28T22:01:38Z")
A new problem surfaces: The check gauges signal lights up and I notice that the oil gauge shows low oil pressure. I checked dip stick engine oil and I find that its ok. After turning off the engine the gauge still shows a low oil level. What is the problem now?