Engine question
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Joined: Oct 2010
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Engine question
Hello Everyone,
I recently bought a 2002 ford expedition with 167,000 Kilometers
After doing an oil change, the exhaust was blowing white smoke like crazy.
We then took out a full liter of oil and ran the truck again. After doing so, no more smoke.
I ran the truck again for 30 minutes and no more smoke came out. I then decided to do a compression test just to be sure and here are the results:
1. 120
2. 115
3. 90
4. 115
5. 120
6. 120
7. 110
8. 120
What does this mean? I have had 3 different answers from 3 different mechanics. Can anyone help?
Thanks,
I recently bought a 2002 ford expedition with 167,000 Kilometers
After doing an oil change, the exhaust was blowing white smoke like crazy.
We then took out a full liter of oil and ran the truck again. After doing so, no more smoke.
I ran the truck again for 30 minutes and no more smoke came out. I then decided to do a compression test just to be sure and here are the results:
1. 120
2. 115
3. 90
4. 115
5. 120
6. 120
7. 110
8. 120
What does this mean? I have had 3 different answers from 3 different mechanics. Can anyone help?
Thanks,
Temporarily Deactivated
Joined: Aug 2009
Posts: 969
Likes: 1
It means you have low compression in one cylinder.
You now need to perfrom a leak down test to determine if you have an issue with the rings or the valves. My guess would be that you have a valve not sealing properly on the offending cylinder.
You now need to perfrom a leak down test to determine if you have an issue with the rings or the valves. My guess would be that you have a valve not sealing properly on the offending cylinder.
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