Jump to content

2005 Tps Value

Ray2005Chevy

By Ray2005Chevy
in Ask A GM Technician

Recommended Posts

Ray2005Chevy Enthusiast

Ray2005Chevy

Posted
Posted

I have a 2005 5.3L Silverado 4 x 4 auto with horrible gas mileage - power is not that great either. I put my scan tool on the truck last week and drove around while observing some of the readings. The first thing I noticed that appears to be abnormal (to me) is the closed throttle TPS reading is not 0% - it is between (yes - it varies) 12% and 25%. The % calc load reading at idle is around 30% and goes above 90% with light acceleration. Cruising at 60 mph gives me a % calc load of around 50%. Are the values normal? Thanks.

tylerjenkins92@aol.com Senior Enthusiast

[email protected]

Posted
Posted
I have a 2005 5.3L Silverado 4 x 4 auto with horrible gas mileage - power is not that great either. I put my scan tool on the truck last week and drove around while observing some of the readings. The first thing I noticed that appears to be abnormal (to me) is the closed throttle TPS reading is not 0% - it is between (yes - it varies) 12% and 25%. The % calc load reading at idle is around 30% and goes above 90% with light acceleration. Cruising at 60 mph gives me a % calc load of around 50%. Are the values normal? Thanks.

 

Well here are my numbers, tps idle-0to.7%, calc. load idle-1to3%, 60 mph load-17%, light acceleration-35to65%. So your numbers look high to me.

Jsdirt Senior Enthusiast

Jsdirt

Posted
Posted

Check engine light should be blazing with those numbers ....

gmtech121 Enthusiast

gmtech121

Posted
Posted

Throttle angle above 12% can easily be caused by something as simple as throttle body carbon.

That's a 12 to 15 mpg vehicle on a good day with a light throttle and a tailwind.

mbertolotti Enthusiast

mbertolotti

Posted
Posted

Does this vehicle have Throttle Actuated Control. if so then i would say it is normal because the throttle plate is controling your idle. if it uses a throttle cable then the Idle Air Control solenoid to keep your vehicle at idle, and the throttle plate can be fully closed.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      Blazer is all put back together. Another hard-won battle. The 4.3 is not easy to work on in such an archaic and narrow chassis originally designed for an inline 4.   My baffle issue is solved. I returned to the OG junkyard but was ready for a fight. The Blazer I had picked from was stacked on another vehicle so I had no idea how the heck I was going to get myself to working height to pull the front end apart. I had seen an S10 pickup on the ground so I was hoping the part would be the same, AND, I couldn't remember if the S10 still had a front end or not. But I didn't need to worry because it turned out to be my lucky day. The yard had just taken in a '98 Blazer, sitting right up front, on the ground, with room to work around it, and the front end hadn't been hit. The baffle and all the clips were factory perfect. I also scored another good handful of odds/ends and the whole shebang only cost me $20.   Got everything back together and it fired right off, sounds good, runs good. I've got a little coolant drip from a lower water pump bolt (D'OH!!). I did the right thing and snugged it down a little bit, and of course that didn't fix it. Yet again, I will have to soak everything in coolant to drain it down to the water pump, remove the bolt, and attempt to re-seal it. Nothing is easy on this truck. Nothing. But now all the radiator plastics are correct, snug, and fully functional. No more rubbing on the cooling fan. It runs, drives (took it for a 30 mile drive last night), no Check Engine lights, EGR is working, no vacuum leaks. We're getting closer...   The replacement wiper motor arrived yesterday. The tailgate was already disassembled and waiting, so I threw that in. It works! Sort of. Two new issues on the list. While the motor is strong enough and the gears aren't stripped, the wiper is hanging up on the bottom of the rear glass. This is the old style where the lower half folds down like a truck tailgate, and the glass swings up, and they meet in the middle when closed. The glass isn't sitting flush with the tailgate, now that I look at it. No rubber bumpers that I can see for adjusting, so I'll have to look at the hinge adjustment to see if I can correct it. Also, the washer/squirter just dumps fluid underneath the truck. The lines actually run inside on the floor so I'm guessing the tailgate is soaked at the rear trim and the line is disconnected. There's also a drain there....probably for this reason.   The leaky water pump bolt was really disappointing. JUST STOP LEAKING...OMG!!   Replacing the window motor and a rear door speaker are still to do, and then everything will work. I want this to feel like a "good" vehicle worthy of dropping $600 for new tires before I do. That means no leaking first. I hurt, and I'm kind of cranky, so I'll probably take a day of rest and do the water pump again tomorrow.
    • KARNUT
      Slate Electric Truck

      By KARNUT · Posted

      Just saw on Jay Leno the new Scout. That’s the way it should be done.
    • Atlas
      Slate Electric Truck

      By Atlas · Posted

      EV's have their nuances too. Best to operate the current type of lithium batteries between 20-80% charge. No real need to charge until you hit around 20%. Occasionally charge to 100% when needed. Longer term storage, battery should be 50-60%. At least those are the guidelines for our iX. We've been exceptionally good to the battery in that car...easy to do when you can charge at home like we can.   EV's lack so many of the rituals and so much of the visceral feeling ICE vehicles provide, which is why I think they're hard to accept for a lot of gearheads. They're fun in different ways, though.
    • diyer2
      Winter Returned

      By diyer2 · Posted

      We have got a lot of rain lately, we needed it. Storms/lightning took out a floor fan. Dirt roads badly rutted from run off.   Power here is sketchy, whole house surge protector in the service panel and all electronics plugged into surge protectors. My biggest concern is my stereo, I've been an audio nut for years. $25 k in equipment. Stereo is on it's own special surge protector.
    • Donstar
      Navigating senior years.

      By Donstar · Posted

      Happy Birthday!  I also turned 72 this year.  In some groups I consider myself to be a young senior and in others I realize I have serious years behind me!  In June I spent a week in the hospital due to a blood clot following knee replacement surgery.  The hospital Doctor assigned to my care specialized in Geriatric medicine!  He is a great Doctor but the fact I required this type of specialized care  made me feel old!  Aging comes with new challenges but I sure appreciate getting older!  It most definitely beats the alternative!!

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...