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Old 09-04-2019, 01:56 PM   #1
keith204
 
Drives: 2007 Yaris LB
Join Date: Aug 2009
Location: Bolivar
Posts: 6
Question My 07 Liftback now has ~150k. Tips for restoring original spunk?

I love my Yaris. Its like the gray LB in the header, but is showing signs of age so I'm starting to address things - some cosmetic, some performance.

Nothing is notably wrong with it mechanically - but gas mileage isn't what it used to be. And, it seems to be less lively/spunky than when newish (bought at 11k mi). Seems a bit slow to accelerate.

Are there any maintenance items that come to mind I ought to tackle to restore the little bit of pep it once had?

Off the bat I'm thinking fuel filter. What else?
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Old 09-04-2019, 02:25 PM   #2
Brighton
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Drives: 07 Yaris Hatch
Join Date: Jul 2019
Location: NOVA
Posts: 33
That's a pretty simple thing to address, I'll just list it to not bore you with text haha. I don't know if the models changed depending on the country it was sold in but I don't think the USDM car has a fuel filter aside from the fuel sock in the gas tank.

Should be done
  • Spark Plugs (NGK or Denso Iridium)
  • Air Filter
  • Throttle body clean

Optional to do
  • BG44k or Seafoam in next full tank of gas and get higher octane than normal
  • Marvel Mystery oil in oil prior to next oil change, idle engine for 15 mins before draining old oil
  • Upgrade to K&N or Spectra air filter
  • Heat soak engine with seafoam introduced via vacuum line after engine is hot (see instructions on can)
  • Disconnect battery for 15+ minutes so car can relearn after work is done
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Old 09-04-2019, 02:32 PM   #3
keith204
 
Drives: 2007 Yaris LB
Join Date: Aug 2009
Location: Bolivar
Posts: 6
Quote:
Originally Posted by Brighton View Post
That's a pretty simple thing to address, I'll just list it to not bore you with text haha. I don't know if the models changed depending on the country it was sold in but I don't think the USDM car has a fuel filter aside from the fuel sock in the gas tank.

Should be done
  • Spark Plugs (NGK or Denso Iridium)
  • Air Filter
  • Throttle body clean

Optional to do
  • BG44k or Seafoam in next full tank of gas and get higher octane than normal
  • Marvel Mystery oil in oil prior to next oil change, idle engine for 15 mins before draining old oil
  • Upgrade to K&N or Spectra air filter
  • Heat soak engine with seafoam introduced via vacuum line after engine is hot (see instructions on can)
  • Disconnect battery for 15+ minutes so car can relearn after work is done

Very, very helpful. Lists are great. Thank you!
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Old 09-04-2019, 07:55 PM   #4
B.B._07
 
Drives: 07 5dr
Join Date: Nov 2015
Location: YYC
Posts: 188
Quote:
Originally Posted by Brighton View Post
That's a pretty simple thing to address, I'll just list it to not bore you with text haha. I don't know if the models changed depending on the country it was sold in but I don't think the USDM car has a fuel filter aside from the fuel sock in the gas tank.

Should be done
  • Spark Plugs (NGK or Denso Iridium)
  • Air Filter
  • Throttle body clean

Optional to do
  • BG44k or Seafoam in next full tank of gas and get higher octane than normal
  • Marvel Mystery oil in oil prior to next oil change, idle engine for 15 mins before draining old oil
  • Upgrade to K&N or Spectra air filter
  • Heat soak engine with seafoam introduced via vacuum line after engine is hot (see instructions on can)
  • Disconnect battery for 15+ minutes so car can relearn after work is done
If by 150K you mean 150,000 KM then your original spark plugs should still be good. I would change the air filer if it's dirty, and clean the throttle body and MAF with some brake cleaner. I don't know about the quality of fuel available in Bolivia but in the US and Canada fuel filters are no longer a maintenance item since the fuel you get at gas stations is now very clean. I'm not a fan of Marvel Mystery oil and K&N air filters since the benefits are marginal or non existent in most cases.
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Old 09-04-2019, 09:07 PM   #5
keith204
 
Drives: 2007 Yaris LB
Join Date: Aug 2009
Location: Bolivar
Posts: 6
Quote:
Originally Posted by B.B._07 View Post
If by 150K you mean 150,000 KM then your original spark plugs should still be good. I would change the air filer if it's dirty, and clean the throttle body and MAF with some brake cleaner. I don't know about the quality of fuel available in Bolivia but in the US and Canada fuel filters are no longer a maintenance item since the fuel you get at gas stations is now very clean. I'm not a fan of Marvel Mystery oil and K&N air filters since the benefits are marginal or non existent in most cases.
Haha. Bolivar is a small town in Missouri. So, miles, US, and inches all apply.

Thanks for the input
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Old 09-06-2019, 12:13 AM   #6
komichal
 
Drives: Yaris 2007 1.3 2SZFE 64kW
Join Date: May 2012
Location: CZ
Posts: 148
Quote:
Originally Posted by B.B._07
clean the throttle body and MAF with some brake cleaner.
I know that some people tend to use brake cleaner on everything but it does leave a thin layer of residue which compromises the MAF functionality. At least for MAF sensor you should get MAF cleaner (which leaves NO residue). And that MAF cleaner can be used on throttle body too.
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Old 09-09-2019, 10:21 PM   #7
SirDigby
 
Drives: 2007 yaris 3 door
Join Date: Sep 2015
Location: Denver, Colorado
Posts: 983
yes. use a specific Mass Airflow Cleaner. there is a protective coating on the platinum wires and brake cleaner can damage the coating. also, i am a firm believer in BG products! i'd recommend using a can of 109 before your next oil change, maybe; you run it for 15 minutes nice and hot. drain dirty and put in some regular oil and a cheap filter. drive it around the block a few times. drain oil and install quality oil and quality filter. then BG MAF cleaner and a can of BG MOA in the oil. here is a video on the MOA...
https://www.youtube.com/watch?v=r-hUI_p4ZIU
there is also videos by this guy for other gb products. (like the 109)
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