2003 Pruis engine Knock

Asked by Oct 24, 2015 at 05:42 PM about the 2003 Toyota Prius Base

Question type: Maintenance & Repair

My 2003 Pruis with 163000 miles has started knocking only on initial start up and then quits. it sometimes runs rough at the same time. replaced spark plug coils and plugs with no reslolve. Its been a great car all these years. Can anyone help?

4 Answers

100

Try cleaning the throttle body and MASS sensor.

Thank you for the reply, I've tired that it didn't change anything, at a local garage they said due to the high miles 163000 they see alot of these engines with the same problem.

100

In your car, the engine runs on the battery power for the first 8-10 seconds, until it starts. Check if your main (high voltage) battery is at low charge when this happens. Does the same thing happened if you drive around for a while and then turn the car off and on?

It does make the same noise once the engine is restarted when warm but only for a few seconds.

Your Answer

Add photo

Related Questions

  • 2003 Pruis engine Knock 4 answers

    My 2003 Pruis with 163000 miles has started knocking only on initial start up and then quits. it sometimes runs rough at the same time. replaced spark plug coils and plugs with no reslolve. Its been a...

    2003 Toyota Prius Base

    -

    Maintenance & Repair

  • 2007 toyota pruis hybrid alarm going off 1 answer

    Does anyone know how to disable the door alarm on a 2007 toyota pruis hybrid. the alarm will go off for no reason we have to take the horn fuse out when we lock the car PLEASE HELP

    2007 Toyota Prius Touring

    -

    Maintenance & Repair

  • What does green relay under engine fuse box cover do? 3 answers

    What does green relay under engine fuse box cover do? Can I jump start my Prius without this component?

    2008 Toyota Prius Liftback

    -

    Maintenance & Repair

  • 2010 prius can using the engine break cause problems 1 answer

    lately when i use the engine break, then back to drive, it jumps back to neutral by itself, but if i stay in drive it seems fine. is this an indication of a major problem, or perhaps just a sensor

    2010 Toyota Prius

    -

    Maintenance & Repair

  • What is this fluid on 2003 toyota prius? 11 answers

    I have a 2003 toyota prius, there is a fluid container located next to hybrid battery area under hood, trying to figure out what it is for. It is below the LOW level. The cap says DENSO on it

    2003 Toyota Prius

    -

    Maintenance & Repair

Prius

Looking for a Used Prius in your area?

CarGurus has 18,078 nationwide Prius listings starting at $1,649.

ZIP:

Search Toyota Prius Questions

Toyota Prius Experts

#1 raae
raae
Reputation 620
#2 TupeloMS
TupeloMS
Reputation 590
#3 jrdregs
jrdregs
Reputation 410
View All

Related Models For Sale

Used Toyota Camry
1,225 Great Deals out of 82,703 listings starting at $750
Used Honda Civic
831 Great Deals out of 83,702 listings starting at $750
Used Toyota Corolla
1,004 Great Deals out of 68,557 listings starting at $1,800
Used Honda Accord
1,053 Great Deals out of 66,933 listings starting at $1,000
Used Toyota RAV4
887 Great Deals out of 62,986 listings starting at $1,988
Used Honda CR-V
950 Great Deals out of 56,203 listings starting at $1,000
Used Toyota Yaris
95 Great Deals out of 3,685 listings starting at $2,499
Used Mazda MAZDA3
394 Great Deals out of 28,779 listings starting at $1,495

Used Cars For Sale

2017 Toyota Prius For Sale
4 Great Deals out of 8,828 listings starting at $20,350
2016 Toyota Prius For Sale
18 Great Deals out of 831 listings starting at $16,499
2015 Toyota Prius For Sale
66 Great Deals out of 1,367 listings starting at $10,990
2014 Toyota Prius For Sale
85 Great Deals out of 1,952 listings starting at $8,800
2013 Toyota Prius For Sale
22 Great Deals out of 878 listings starting at $7,989

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.