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My car was chugging and hesitating

Tiny
SATURN1972
  • MEMBER
  • 2003 SATURN VUE
  • 167,000 MILES
My car was chugging and hesitating. Code reader said misfire # 2 and 3 changed the plugs but still getting misfire P0303 what can I do next? Also just noticed today smoke coming from under the hood top of engine but sure from where
Tuesday, January 29th, 2013 AT 5:14 PM

27 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Which engine do you have?
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Tuesday, January 29th, 2013 AT 5:57 PM
Tiny
SATURN1972
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  • 15 POSTS
V6 3 litre
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Wednesday, January 30th, 2013 AT 5:21 PM
Tiny
SATURN1972
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Going to try the coil next and see
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Wednesday, January 30th, 2013 AT 6:00 PM
Tiny
SATURNTECH9
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If your only getting the code P0303 and you can feel the missfire?Then I would do a spark test and see if the spark is a nice blue spark on that plug?
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Thursday, January 31st, 2013 AT 3:02 AM
Tiny
SATURN1972
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Yes the only code is that P0303 the car does not chug.I just notice in the RPMS the missing.
So you don't think it is the coil? Cause we are going to try the coil pack this weekend.
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Thursday, January 31st, 2013 AT 6:08 PM
Tiny
SATURNTECH9
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Does it only miss at idle?
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Thursday, January 31st, 2013 AT 6:37 PM
Tiny
SATURN1972
  • MEMBER
  • 15 POSTS
Today I went and filled up the car with gas and now the service engine light is off? Doesn't feel like misfire anymore but there still smoke coming from under the hood when I got home from a 70km drive.? Now what? Should we change the coil anyways?
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Friday, February 1st, 2013 AT 12:03 AM
Tiny
SATURNTECH9
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If its running good now I really doubt you have a bad coil. Where's the smoke coming from?
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Friday, February 1st, 2013 AT 4:09 AM
Tiny
SATURN1972
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  • 15 POSTS
After driving about 50 mins smoke is coming from under hood near top of engine close to windshield passenger side can't really see cause of the cover on the engine
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Friday, February 1st, 2013 AT 2:30 PM
Tiny
SATURN1972
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  • 15 POSTS
Still no service engine light as well. So am I good you think?
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Friday, February 1st, 2013 AT 2:31 PM
Tiny
SATURNTECH9
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Your going to have to see if oil is leaking on the hot exhaust or what's happening?
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Friday, February 1st, 2013 AT 3:57 PM
Tiny
SATURN1972
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Okay on weekend did compression test on cylinders all were 200% except cylinder 3 that had the misfire it was at 60% how long will my car be able to run like this? What should I do?
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Sunday, February 3rd, 2013 AT 10:57 PM
Tiny
SATURNTECH9
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So number 3 cyl only has 60psi compression?
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Monday, February 4th, 2013 AT 12:14 AM
Tiny
SATURN1972
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Yes that is correct what can I do to fix this problem?
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Monday, February 4th, 2013 AT 1:48 PM
Tiny
SATURNTECH9
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Most likely a valve issue you can do a leak down test to make sure but to fix it you will have to pull the head and a have a valve job done.
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Tuesday, February 5th, 2013 AT 2:09 AM
Tiny
SATURN1972
  • MEMBER
  • 15 POSTS
Do you know how much that would cost?
My service engine did not come back on when put back together.
Do you know how long I can drive the car like this?
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Tuesday, February 5th, 2013 AT 6:57 PM
Tiny
SATURNTECH9
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Are you sure the compression is that low?Also what's your zip code?
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Wednesday, February 6th, 2013 AT 1:18 AM
Tiny
SATURN1972
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Mechanic said 3 cyl compression was at 60% and others were at 200%

still no service light is not on.

I live in Ontario, Canada
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Wednesday, February 6th, 2013 AT 7:37 PM
Tiny
SATURNTECH9
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60 percent or 60psi?
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Wednesday, February 6th, 2013 AT 8:44 PM
Tiny
SATURN1972
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All the mechanic said was 60 I guess psi. He said was at 60 when he did the test
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Thursday, February 7th, 2013 AT 3:42 PM

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