I have a saturn vue and the ligth reduced power come on and it don't get more than 10 mph after that we check with the computer all ready and we sill don't know whats goin on?

When the reduced power light comes on there's a code stored in the computer. Get the codes read. That's ALWAYS the starting point to eliminate guessing

Just to add to this one if the reduced power light is coming on then your having a failure in your electronic throttle system. Get the computer scanned for codes and post the exact code numbers not the code descriptions.

2003 Chevy Trailblazer-CHECK ENGINE LIGHT AND REDUCED ENGINE POWER ...

www.topix.com > California > San Diego County > Oceanside
Dec 23, 2011 - 2003 Chevy Trailblazer-CHECK ENGINE LIGHT AND REDUCEDENGINE POWER ... The reduced engine power ligth comes on and I lose power. ...Next, the fan clutch failed -- which is when he did an "above and beyond" .... yesterday I have not replaced anything bc they have told me nothing is wrong.

you have to get the codes read to find out the problem.

It most likely is in a fail safe mode to protect it
from any damage

Usually that is exhaust converter damage, which is
govt emissions mandated

You should have a OBD2 MIL Lamp or some dash light lite

You address that problem, as you have all others & all
vehicles, for the last 30 years, since those systems have
been on all vehicles

You check for codes,then using factory trouble charts,
go to the system that the codes point to & then component
test

A cylinder misfire so severe it could damage the converter
is a common item & sometimes you get transmission
failsafes or overheating failsafes

please state what engine this vehicle has is it the europeon 16v engine made by opel in germany by any chance of around 2 litre

check your catalytic convertor

reduce power light on how to fix it on saturn vue 2003

Transmissions are tied into the function of the newer Saturns which can give you drivablity problems. You should take it too an authorized dealer to have it diagnosed just for that reason alone.

It is most likely the Throttle Position Sensor has gone bad. But if the check engine light is on, the only way to tell exact problem, is to have a scanner placed on the vehicle to have the codes read.