spools420a
05-25-2020, 10:19 AM
Note this is my gf 2004 kia rio but the kia forums dont have as much skilled eople as zilvia.The car has a misfire around idle I have been chasing and trying to fix.I did a vacuum test and compression test to see if the engine is ok.
heres the vid of the vacuum test
https://www.youtube.com/watch?v=SY34dzPVQhQ&feature=youtu.be
So with a/c off it seems good,we see 22in of vaccum BUT when the a/c kicks on we start seeing 15in of vacuum?when the a/c is on is when the car shaking seems worst.I do see very slight fluxuation of the needle but its so slight I dont see it as a problem.
the compression test results
dry
1# 150
2# 149
3 143
4 #150
wet
1# 182
2# 175
3 170
4 180
with this said can I rule out the engine low compression being the cause of misfire?
heres the vid of the vacuum test
https://www.youtube.com/watch?v=SY34dzPVQhQ&feature=youtu.be
So with a/c off it seems good,we see 22in of vaccum BUT when the a/c kicks on we start seeing 15in of vacuum?when the a/c is on is when the car shaking seems worst.I do see very slight fluxuation of the needle but its so slight I dont see it as a problem.
the compression test results
dry
1# 150
2# 149
3 143
4 #150
wet
1# 182
2# 175
3 170
4 180
with this said can I rule out the engine low compression being the cause of misfire?