Question about 1993 Ford Ranger SuperCab

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1993 ranger 2.3L reg. cab

What is the cause of oil being pulled from the valve cover into the throttle body. I cant buy a factury shop manual, hanes does not cover this area and is worthless, Ford dealers will not give any information. I am very capable of repairing my vehicles. Can you help

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Posted on Jan 23, 2009

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Are you smelling gas in your oil? because the throttle body is not connected to the valve cover.

Posted on Aug 15, 2008


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1 Answer

00Linc ls v8 hose connected to side of throttle body from valve cover disconnected at throttle body noticed oil what's wrong

That will be your PCV hose. If there is no valve there it is missing.
Engine will not run properly due to vacuum leak, and crankcase will be venting through valve cover, hence the oil.

Dec 06, 2015 | Cars & Trucks

1 Answer

Ford 5.4L 3 valve motor has vacuum in the oil pan and will not run with the fill cap off.

The only vacuum being pulled, is the hose from the valve
cover (PVC) hose ,I believe, to the throttle body area

The reason you have a crankcase vacuum so high on the other
valve cover & oil fill cap, is that air can't get in to replace the air
drawn in behind the throttle body

eg: you have no air coming in,find out why

I think the air in comes from the ducting around the MAF Sensor
area in a 1" plastic or rubber tubing to the cover where your fill cap is

My Lincoln is like that

I have been around 5.4 fords I just haven't googled a picture of yours,you can do that or look over your truck

The vacuum amount or flow rate is controlled by the PCV valve
hoses & system design,so you have no air coming in the other
cover or little,thus high crank case vacuum

That said-- what your doing is NOT a test & in some motors will set
a MIL Lamp & OBD Codes

Once the oil cap if off, you have an open hole for air to rush in & back to the pcv & intake,so leave it on when the motor is running

Opposite your theory

It dies because with the oil cap off, your letting in unmetered air
that goes into the intake,cylinders & out the exhaust & you loose
fuel trim control,as the oxygen sensors & pcm are confused

Today's vehicles work in Milli Seconds & only work within programmed parameters

Apr 10, 2014 | 2004 Ford F150

1 Answer

Oil in throttle body

check for the breather pipe from rocker cover to throttle body. either you do have a problem with the rocker cover release valve on breather and allows oil going into throttle as every time accelerated **** oil. if there is not any valve there in then see whether you can fit any type of a straight pipe filter on the hose to cut out the oil flow.

Sep 05, 2012 | Oldsmobile Cutlass Cars & Trucks

2 Answers

I have found engine oil in the throttle body on 1994 toyota tercel

it may be the pcv valve ( positive crankcase ventilation) that needs replaced. if a pcv valve fails, it will put oil in air cleaner or throttle body. check to be sure hose to valve is not clogged up. its only about a 5.00 part. have a good one !!

Nov 18, 2010 | 1994 Toyota Tercel

3 Answers

Have a 1998 pontiac grand am and it feels like the throttle is stuck although i dont think it has a throttle cable... when i put the car in park the rpms are at 3000

1998 has a throttle cable. The throttle body has an idle air valve that can sometimes become unseated causing high idle. It can be removed and cleaned and reinstalled. Also the throttle body can be cleaned and reinstalled. I suggest a Hanes manual from a parts place most of these places will run diagnostics on your car for free as well, just ask. If this has been helpfull please leave feedback. Thanks, SP

Oct 18, 2009 | 1998 Pontiac Grand Am

2 Answers

2001 BMW 740iL is sputtering when I accelarate and shaky when idl

A tune-up and throttle body clean-up is a good idea, but mind you on those cars, the valve covers usually leak into the spark plugs and coils, causing the car to misfire. If you are replacing the plugs and find them soaked in oil; replace your valve cover gaskets or you will be back to the same problem soon after the oil soaks the new plugs back up again.

Jul 22, 2009 | 2006 BMW 750Li

1 Answer

1987 s10 pickup transmission leaking. two spots , Governor cover and from some sort of cable going from the transmission to the throttle body

The govenor cover has an o-ring seal. No problem, just be sure NOT to let the govenor fall out. Remove the cover with a screwdriver by tapping it outward with a hammer, gently. The throttle valve cable has a rubber seal, you can get from any trans shop. Unhook it from the top/throttle body first. Leave it mounted in the brackets. Then remove the bolt holding it into the trans, pull up and un hook the throttle valve linkage. Be sure to reinstall this in the reverse order. If when you go to hook it back up top pull the cable. You should feel spring tension on the cable if so then you have it right. Good Luck

May 16, 2009 | 1987 Chevrolet S-10 Pickup

1 Answer

Think the oil is leaking from either the oil pan

What I would do if I were you, I would go to the local auto parts store and buy a Hanes Repair Manual for your specific car-make sure it is the correct year and model. Read and follow the directions written in the manual. If it is just an oil pan or valve cover gasket, the manual will show you step by step on how to do the job correctly. It is not hard at all. After your done fixin, you'll have a sense of accomplishment and would have saved approx. $100 in labor cost. Good Luck.

May 13, 2009 | 1987 Dodge Caravan

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