My 98 ford f-150 v6 won't start

Asked by Jan 19, 2016 at 05:01 PM about the 1998 Ford F-150 STD Extended Cab SB

Question type: Maintenance & Repair

I had the smog checked and it passed, while driving it home it started to
loose power and then stopped. Had it towed home, put in new fuel filter,
checked cyl . comp. 1 low cyl. Changed all plugs. ohmed all plug wires,
injectors,sensors. checked timing, it pops and back fires when trying to
start. Fuel press is around 50 lbs but drains off in about 20 sec. to 10 lbs..
If I spray starter fluid in the throttle body it pops and back fires. Changed
timing pickup sensor. Could it be in the computer??? I don't think it jumped
time, but don't know why it back fires.

4 Answers

78,025

Well you still have a fuel issue. Fuel pressure bleeding off that fast is definitely a leak in either the injectors, lines running to the injectors or the fuel pressure regulator. It could backfire from this, too much fuel leaking into the cylinders. What size engine is this?

2 of 2 people found this helpful.

The engine is a 4.1 .. I have checked all sensors and replaced most of them. I just pulled the injectors ad found one bad. Replaced it and put new o-rings around the rest, still cranks ,but does not start.put in a new batt. also.

78,025

Don't laugh, but something is definitely wrong. For it to be back-firing even with the starting fluid is telling me that it is in the timing. Timing may have jumped and 1 low cylinder is a good indication of this. Now I was trying to see what timing system you have in there, (chains & set-up) but cannot find a 4.1L engine. Would it be a 4.2L? Also looking for a W in the vin number. But this is does not have anything to do with the fuel issue. Fuel pressure should not bleed off that fast.

8,005

If in fact u have the 4.1 that'll be the inline 6 cyl and it has a distributor. check the distributor cap for cracks or wear

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 226,355 nationwide F-150 listings starting at $1,250.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,750
  • #2
    dandyoun
    Reputation
    4,670
  • #3
    tennisshoes
    Reputation
    3,380
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,869 Great Deals out of 161,880 listings starting at $1,295
Used GMC Sierra 1500
1,228 Great Deals out of 63,094 listings starting at $1,200
Used Ford F-250 Super Duty
502 Great Deals out of 47,169 listings starting at $1,817
Used Dodge Ram 1500
381 Great Deals out of 11,013 listings starting at $1,699
Used Toyota Tacoma
644 Great Deals out of 41,019 listings starting at $2,500
Used Ford Mustang
457 Great Deals out of 42,836 listings starting at $1,488
Used Ford F-250
419 listings starting at $2,900
Used Ford F-350 Super Duty
413 Great Deals out of 26,424 listings starting at $2,500
Used Ford Explorer
1,156 Great Deals out of 64,842 listings starting at $1,200
Used Ford Ranger
155 Great Deals out of 5,274 listings starting at $999

Used Cars For Sale

2018 Ford F-150 For Sale
14 Great Deals out of 134,450 listings starting at $18,092
2017 Ford F-150 For Sale
202 Great Deals out of 17,296 listings starting at $18,000
2016 Ford F-150 For Sale
224 Great Deals out of 7,621 listings starting at $16,997
2015 Ford F-150 For Sale
479 Great Deals out of 11,053 listings starting at $9,000
2014 Ford F-150 For Sale
739 Great Deals out of 14,850 listings starting at $7,000

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.