what causes build up in crank case and blows the oil out?

Asked by Oct 22, 2015 at 04:09 PM about the 1988 Ford F-150 S Standard Cab LB

Question type: Maintenance & Repair

4 Answers

It is a 4.9 , 6 cylinder

46,695

Is your PVC valve functioning correctly? Clean it out or replace it but you have just have excessive blow by due to worn rings.

1 out of 1 people think this is helpful.
Best Answer
86,775

Check your PCV system, could be the valve is plugged or the vacuum line to it, then make sure the PCV filter, tubing and fittings are in good repair, if all that checks good then either it is being over revved or the rings are shot. Remember these engines are torque motors, they are not designed for speed, the straight six's peak horsepower is 150hp @3400 rpm and peak torque is 265@ 2000rpm.

17,315

Just being an old worn out motor causes this

Your Answer

Add photo

Related Questions

  • 1984 Ford F150 leaking oil from oil dipstick, oil pressure low 2 answers

    I recently replaced the valve cover gaskets on my truck to stop it from leaking oil (they have), I still see white smoke from behind if I go over 40mph, and it smells like burning oil. Most of the oil...

    1984 Ford F-150 XLT Standard Cab SB

    -

    Maintenance & Repair

  • transfer case oil 2 answers

    what kind of oil can i put in to fill up my transfer case on my 1998 ford f150 with the 5.4

    1998 Ford F-150 Lariat 4WD Extended Cab Stepside SB

    -

    Maintenance & Repair

  • forgot to put oil in... 9 answers

    so im doing an oil change today on my 2004 ford f150, and i got distracted at one point, and i ran the truck with no oil in the engine. i shut it off because i heard a somewhat loud knocking noise. i...

    2004 Ford F-150

    -

    Maintenance & Repair

  • if your truck cranks but will not start, what would be the problem? 112 answers

    STARTING PROBLEM I have a 2000 ford f150 5.4L the truck cranks but will not start some times. if i spray starter fliud into the booster in will start up. but other times the truck will start then just...

    2000 Ford F-150 Lariat Extended Cab SB

    -

    Maintenance & Repair

  • FE 390 oil leak 1 answer

    Have an oil leak that appears to be coming out of the intake breather on my fe 390. Any suggestions on causes and/or solutions??

    1964 Ford Galaxie

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 212,369 nationwide F-150 listings starting at $1,000.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,930
#2 dandyoun
dandyoun
Reputation 4,180
#3 tennisshoes
tennisshoes
Reputation 2,510
View All

Related Models For Sale

Used GMC Sierra 1500
941 Great Deals out of 62,271 listings starting at $1,395
Used Ford Mustang
364 Great Deals out of 44,400 listings starting at $1,000
Used Ford F-250
513 listings starting at $3,500
Used Ford Ranger
203 Great Deals out of 6,719 listings starting at $1,450
Used Jeep Wrangler
393 Great Deals out of 19,086 listings starting at $3,000

Used Cars For Sale

2017 Ford F-150 For Sale
4 Great Deals out of 103,478 listings starting at $18,199
2016 Ford F-150 For Sale
154 Great Deals out of 41,651 listings starting at $16,995
2015 Ford F-150 For Sale
197 Great Deals out of 7,255 listings starting at $17,480
2014 Ford F-150 For Sale
433 Great Deals out of 11,727 listings starting at $10,700