1990 Ford ranger 4.0 running rich, loss of power

10

Asked by Danny Apr 15, 2016 at 09:07 PM about the 1990 Ford Ranger XLT Standard Cab 4WD LB

Question type: Maintenance & Repair

I recently bought a 1990 Ford ranger with a 4.0 and
noticed the engine was missing, so I pulled all the
plugs and found the number two plug was fouled. I
went and bought all new plugs and wires and it
seems to be running better, after a few days I
popped the number two plug out again to check on
it and it's wet with oil, hence how it got fouled in
the first place. I notice the truck lacks power and
runs extremely rich and blows a blueish almost
white smoke out, the coolant levels are fine and
the oil is not milky so I'm not burning coolant. I
took out the maf sensor and took it apart and it
was visibly clean and in working order. I was
thinking maybe it had a valve problem but I'm not
sure, any input is appreciated.

1 Answer

10

Also, when I get to about to 45 mph it seems to stumble and shake a lil bit.

1 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    4,420
  • #2
    Bob Beaman
    Reputation
    3,010
  • #3
    Jennifer Gorham
    Reputation
    2,620
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Ford Bronco
23 Great Deals out of 1,353 listings starting at $37,808
Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Jeep Wrangler
145 Great Deals out of 5,071 listings starting at $5,450
Used Toyota 4Runner
10 Great Deals out of 304 listings starting at $9,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.