Driving with oil cap off

Tiny
LINCOLNLISAU
  • MEMBER
  • 1996 LINCOLN TOWN CAR
  • V8
  • AUTOMATIC
  • 160,000 MILES
I did an oil change about a month ago and apparently didn't put the cap back on. So I was wondering if this is going to cause some long term damage? My car is a 1996 Lincoln Towncar. It has always kinda choked while accelerating, but more so recently (I know. I know. My bad)
Wednesday, May 25th, 2011 AT 8:00 PM

4 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
Oil cap is there to close off the crankcase--keep in oil--Keep dirt out--let the PCV system operate as it was meant to.

I really do not think it affected your engine at all, You do need to put it back on!

I think maybe you need to perform a tune up, for your engine's performance

If your check engine light is on, take it to a Popular Auto Parts Store. Normally they can read your codes for free. Light on, means there is a problem with you vehicle, and needs some attention.

You can return here with any code numbers, someone here, can steer you towards what needs attention.

The Medic
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Thursday, May 26th, 2011 AT 2:40 AM
Tiny
LINCOLNLISAU
  • MEMBER
  • 3 POSTS
Awesome, that's about what I figured. Already planning another oil change this weekend. Thanks bud

-I had the codes checked and it's th O2 sensor, but oddly enough the guy at Advanced said not to buy the replacement parts. O_o (yes, I'm going to fix it anyway)
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Thursday, May 26th, 2011 AT 7:12 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
I feel sure you have more than one O2 sensor, did the code pin down which one needs attention?

Never heard 'em say don't buy the part---they having problems with them?

If your O2 is down, your vehicle runs in "closed loop" which is inefficient (MPG goes down, etc.)

He give any reason why?

The Medic
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Friday, May 27th, 2011 AT 5:02 AM
Tiny
LINCOLNLISAU
  • MEMBER
  • 3 POSTS
Hmm, he gave me a list of 3, I think. He said not to buy them (they were like $30) Because it might be an easy fix and to look online for the fix. But I'm busy and lost the list, so, I'll have to go get retested.
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Friday, May 27th, 2011 AT 5:14 AM

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