2005 Hyundai Elantra Left oil cap off for 2 weeks. Now car

2005 HYUNDAI ELANTRA
49,678 MILES • 4 CYL • 2WD • MANUAL
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JEFFERY G KANSAS CITY
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  • 3 POSTS
I put oil in 2 weeks ago, and realized yesterday i'd forgot to replace oil filler cap. Was no signs of leaking or spillage. No burning smell, but my car is REALLY sluggish getting up to speed ( including engine revving at high rpm's to achieve this). Runs ok once up to speed. What has happened, and what can i do?
Aug 25, 2010 at 4:04 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi Jeffery ,

If the engine is revving wihout much acceleration, it indicates a slipping clutch. Get the clutch checked and replace if necessary.

Leaving the oil cap off would not affect the performance.
Aug 25, 2010 at 6:30 AM
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JEFFERY G KANSAS CITY
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The high revv is from me having to revv up to 5000 rpms to get it going. Could problem be from air in engine, or could it be a pressure problem?
Aug 25, 2010 at 11:18 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
When do you need to rev engine to 5000?.
In what gear and speed?
Aug 25, 2010 at 11:01 PM
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JEFFERY G KANSAS CITY
  • MEMBER
  • 3 POSTS
I have to do it on all gears. On hills, no matter the slope is the Worse. I barely get through intersection after green light, before it turns red. The oil on dipstick is dark now, black almost, but i cant see it JUST needing an oil change.
Aug 26, 2010 at 1:49 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Get the clutch checked. It is slipping. you would be stranded soon.
Aug 27, 2010 at 4:04 AM
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