please help
bugman742002
10-13-2010, 10:04 PM
i have a 93 mustang with the 2.3 in it. i had the compression tested the other day and was told that all 4 cyl were at 50 psi. it currently has 160,000-170,00 miles on it. it doesn't burn any oil but drinks gas like it has a big block under the hood. 8-12 in the city and 17-20 on the hwy. anyone have an idea what it could possibly be?
Boost1egt
10-14-2010, 12:21 AM
hi bugman. I have some questions. How often do you change the oil on the car? M/T or A/T?
bugman742002
10-14-2010, 12:24 AM
i change the oil every 3,000 miles or 3 months whichever comes first. it's an automatic.
Boost1egt
10-14-2010, 12:35 AM
ok, thanks. Why do you say it doesn´t burn oil?
bugman742002
10-14-2010, 12:42 AM
i drain the same amount of oil as i put in at every oil change. i don't have to add any to it between oil changes either.
Boost1egt
10-14-2010, 12:55 AM
Oh, I see. I asked this, because sometimes, when we change the oil when we should, (like you do) we don`t perceive an important consumption of oil like we would see if we drive the car 4 or 5 months without changing the oil.
Have you checked the sparkplugs to see how they´re burning? How do they look?
Have you checked the sparkplugs to see how they´re burning? How do they look?
bugman742002
10-14-2010, 12:59 AM
plugs look normal but will have to check them again tomorrow. also it is starting to run a little warmer than it usually does. it's normally near the lower part of the gauge now it comes up to the middle of the gauge when i stop at a stop light. and the radiator is still full so no coolant loss so far.
Boost1egt
10-14-2010, 01:06 AM
When an engine runs rich, it runs hotter. Check if the MAP sensor its out of calibration.
How does the car feel? Do you feel like it has lost a significant amount of power.
How does the car feel? Do you feel like it has lost a significant amount of power.
bugman742002
10-14-2010, 01:10 AM
yes it has lost alot of power. what bothers me is the low compression readings. i may have to recheck that latter today or friday.
Boost1egt
10-14-2010, 01:18 AM
Yea, the engine´s probably tired. If you let the engine warm up for a while, and remove the oil fill cap, you can expect some gray vapor to come out when an engine´s tired.
bugman742002
10-14-2010, 01:20 AM
ok will check that later this morning. so it looks like it is time for a rebuild.
Boost1egt
10-14-2010, 01:34 AM
Yea. Thanks for the patience, man. Hope that was helpful. Dont forget to let us know what you find if you find something.
bugman742002
10-14-2010, 01:37 AM
thank you for giving me a few ideas and things to check out. i was ready to pull my hair out and torch the car. i will let you know what i come up with as the culprit.
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