Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN









2004 chevy trailblzr-throttle position sensor replace


  Email This Post



stevieray89
New User

Aug 15, 2009, 12:43 PM

Post #1 of 5 (5757 views)
Shortcut
2004 chevy trailblzr-throttle position sensor replace Sign In

2004 chevy trailblazer-4.2liter-78k miles
Wifes truck--She called and said the truck was all of a sudden running real sluggish.....max speed 5-10mph-Has had "check engine"lite on for about 3-4 weeks---Just now when the sluggishness started .....this message was replaced with something like" low engine power" or "reduced engine power"-diagnostics check by uncertified personnel revealed engine codes relating to the throttle position sensor......it appears that there is one located on the throttle body and possibly one @ the pedal????? If so..........how do i determine which sensor.......and how hard is it for the average unmechanic guy to change out the sensor on the throttle body? I don't even know where the throttle body is so you get an idea of how much of a mechanic i am..........and is it possible for it to be a fuel filter problem? Thanks beforehand for any help on this matter.

Stevie Ray


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 15, 2009, 12:58 PM

Post #2 of 5 (5740 views)
Shortcut
Re: 2004 chevy trailblzr-throttle position sensor replace [In reply to] Sign In

You have a "Drive by wire" throttle system. It uses 2 TPSs, one ranging up and one ranging down. If one goes bad, the computer defaults to only partial throttle. You will have to replace the pedal position sensor to resolve the problem.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



stevieray89
New User

Aug 15, 2009, 1:10 PM

Post #3 of 5 (5736 views)
Shortcut
Re: 2004 chevy trailblzr-throttle position sensor replace [In reply to] Sign In

Thanks again for the quick response. One more question.....so i have some sense of how this works.............how would i know if i had to replace the "other" sensor? Once again.....thanks beforehand.............
Stevie Ray


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 15, 2009, 1:11 PM

Post #4 of 5 (5732 views)
Shortcut
Re: 2004 chevy trailblzr-throttle position sensor replace [In reply to] Sign In

They are both together in one part so you don't have a choice.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



stevieray89
New User

Aug 15, 2009, 1:14 PM

Post #5 of 5 (5732 views)
Shortcut
Re: 2004 chevy trailblzr-throttle position sensor replace [In reply to] Sign In

Great......first time i've used this type of site for anytype of repair or diagnostic information.........looks like it works great............




2004 chevy trailblzr-throttle position sensor replace


  Email This Post
 
 






Latest Forum Post

1992 Toyota Paseo Coupe Pictures below from my Dad's car. Obviously broken. W...


Replaced head gaskets in Toyota 4 Runner 3 liter V6. Gaskets had blown. Had he...


Hello all. This is related to my motorcycle, but I guess an engine is an engine...


2004 Saturn Ion ? ~110,000 miles So recently my car has had some issues startin...


Hello I have a 2008 Chevy Impala 3.5 liter V6 and I have this annoying issue tha...


97 chevy truck won't start loud buzzing under dash on drivers side battery is fi...


Feed Button






Automotive Forum Categories
AC Auto Repair
Auto Body Repair
Auto Insurance
Automotive Repair
Automotive Wiring
Automotive World
Brake Systems
Car Care Tips
Car Racing
Car Shows and Events
Car Stereo Repair
Car Troubleshooting
Engine and Car Noises
Engine Fault Codes
Engine Troubleshooting
Exhaust System Repair
Gasoline and Motor Oils
General Discussions
Motor Vehicle Inspection
Motorcycle ATV Repairs
Motorcycle Body Repair
Motorcycle Clutch Repair
Motorcycle Engine Repair
Motorcycle Repair
Motorcycle Seat Repair
Remote Control Cars
Steering and Suspension
The Bargin Bin
Traffic Ticket Help
Tricks of the Trade
Truck Repair
Truck Repair Advice
Truck Engine Repair
Truck Suspension Repair
Car Forum - Sitemap


Search for (options) Privacy

web statistics