# Oil blowing out of oil cap **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** ford, ranger\ **Created:** [March 17, 2018, 5:47am UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864 "2018-03-17T05:47:04Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Kyle\_Frank](https://avatars.discourse-cdn.com/v4/letter/k/f19dbf/32.png) [@Kyle\_Frank](https://community.cartalk.com/u/Kyle_Frank)\ **Post date:** [March 17, 2018, 5:47am UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/1 "2018-03-17T05:47:04Z")
I have a 1986 ranger with oil blowing of the oil cap recently good and all truck but became very doggy in the throttle and started smoking thru 1st and 2nd gear and 3rd gear oil ended up blowing all down the driver side of the of the motor but starts right up changed the breathe cap egr and new valve gasket but still blows oil in the card its a 2.0 single barrel carb 5 speed need help abt to rebuild the engine stuff it in the corner a d put a v8 in it but idk what to build its a mint truck almost a mint truck body wise little bon do but nothing serious but ant to do a quick build ---
**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\ **Post date:** [March 17, 2018, 1:20pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/2 "2018-03-17T13:20:29Z")
Your post is very hard to understand without punctuation marks. ---
**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\ **Post date:** [March 17, 2018, 1:43pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/3 "2018-03-17T13:43:35Z")
Oil blowing out of an oil cap usually means that the engine is shot. Very doggy and smoking just reinforces my diagnosis. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [March 17, 2018, 1:59pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/4 "2018-03-17T13:59:18Z")
> [@COROLLAGUY1](#): > > Your post is very hard to understand Yes, definitely > [@missileman](#): > > Oil blowing out of an oil cap usually means that the engine is shot. Very doggy and smoking just reinforces my diagnosis. This is probably correct, but I would suggest that the OP buy and install a new PCV valve. A huge percentage of drivers apparently never replace this incredibly cheap part, and the symptoms that were described could possibly be the result of a gunked-up PCV valve. ---
**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\ **Post date:** [March 17, 2018, 5:14pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/5 "2018-03-17T17:14:17Z")
Possibly the engine is overfilled with oil. Very likely in fact. ---
**Author:** ![thegreendrag0n](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thegreendrag0n/32/9265_2.png) [@thegreendrag0n](https://community.cartalk.com/u/thegreendrag0n)\ **Post date:** [March 17, 2018, 5:20pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/6 "2018-03-17T17:20:03Z")
I would vote with @VDCdriver on checking/replacing PCV valve ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [March 17, 2018, 11:57pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/7 "2018-03-17T23:57:30Z")
Try replacing the oil cap. ---
**Author:** ![Kyle\_Frank](https://avatars.discourse-cdn.com/v4/letter/k/f19dbf/32.png) [@Kyle\_Frank](https://community.cartalk.com/u/Kyle_Frank)\ **Post date:** [March 21, 2018, 5:33am UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/8 "2018-03-21T05:33:39Z")
sorry I was in a rush when I wrote it it was ant the ranger right? ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [March 21, 2018, 5:59am UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/9 "2018-03-21T05:59:42Z")
> [@Kyle\_Frank](#): > > I was in a rush when I wrote it it was ant the ranger right? You seem to be in a rush once again. Is the oil cap missing? Why does it appear to be leaking from the oil cap? There should not be any crank case pressure if the PCV breather circuit is working properly. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [March 21, 2018, 12:52pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/10 "2018-03-21T12:52:49Z")
> [@Kyle\_Frank](#): > > I was in a rush when I wrote it it was ant the ranger Is _Ant The Ranger_ a cartoon character? I’m confused… 🤔 ---
**Author:** ![Kyle\_Frank](https://avatars.discourse-cdn.com/v4/letter/k/f19dbf/32.png) [@Kyle\_Frank](https://community.cartalk.com/u/Kyle_Frank)\ **Post date:** [March 22, 2018, 5:06pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/11 "2018-03-22T17:06:56Z")
Their is a breather on the oil cap that leads to the carburator and the carburator is were all the oil seems to end up ---
**Author:** ![Kyle\_Frank](https://avatars.discourse-cdn.com/v4/letter/k/f19dbf/32.png) [@Kyle\_Frank](https://community.cartalk.com/u/Kyle_Frank)\ **Post date:** [March 22, 2018, 5:07pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/12 "2018-03-22T17:07:30Z")
And the oil cap is not missing ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [March 22, 2018, 7:34pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/13 "2018-03-22T19:34:14Z")
The breather hose should run to the air cleaner with a breather filter on the end of the line, check if the breather filter is plugged up. The PCV valve hose should be connected to the intake manifold at the base of the carburetor, check if the line,valve and ports are plugged up. ---
**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\ **Post date:** [March 22, 2018, 8:13pm UTC](https://community.cartalk.com/t/oil-blowing-out-of-oil-cap/113864/14 "2018-03-22T20:13:18Z")
I recall that engine having an oil separator similar to an old road draft tube. The separator is mounted in the block behind the alternator and the PCV valve is between that separator and the intake manifold. Over filling would likely result in blowing the PCV valve out of the separator hose and dumping oil. And the oil would contaminate the combustion chamber resulting in poor running/power loss.