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


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?

1 out of 1 people think this is 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.


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.


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

Add photo

Related Questions

  • Ford f 150 won't start 3 answers

    I have a 1989 Ford F 150 and have replace the battery, starter, alternator, and water pump recently. It will run for a day or so then the battery acts like it is dead and won't start? Any idea what...

    1989 Ford F-150 STD Standard Cab 4WD LB


    Maintenance & Repair

  • Won't start

    My 98 ford f150 4×4 won't start. I went out to start it and it ran then it turned off went to start it up again and now it wont start. Can someone please help me

    1998 Ford F-150


    Maintenance & Repair

  • 98 f-150 4.6 8 cyl 1 answer

    I have a98 f150. Will start but won't idle unless I press on the throttle. Fuel pump is working as it should. Any clues as to the problem?

    1998 Ford F-150 STD SB


    Maintenance & Repair

  • 2000 F-150 won't start, 6 answers

    STARTING PROBLEM I have a 2000 ford f150 5.4L the truck cranks but will not start some times. Not getting any check engine lights or codes found. It has $25 worth of fuel in it and oil is full. Can an...

    2000 Ford F-150


    Maintenance & Repair


Looking for a Used F-150 in your area?

CarGurus has 216,641 nationwide F-150 listings starting at $1,500.


Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
Reputation 6,020
#2 dandyoun
Reputation 3,900
#3 tennisshoes
Reputation 2,300
View All

Related Models For Sale

Used Chevrolet Silverado 1500"
2,448 Great Deals out of 144,749 listings starting at $1,995
Used GMC Sierra 1500"
1,025 Great Deals out of 56,906 listings starting at $2,300
Used Dodge Ram 1500"
521 Great Deals out of 13,734 listings starting at $995
Used Ford F-250 Super Duty"
441 Great Deals out of 42,971 listings starting at $2,250
Used Toyota Tacoma"
628 Great Deals out of 30,530 listings starting at $2,850
Used Ford F-250"
609 listings starting at $3,995
Used Ford Mustang"
736 Great Deals out of 41,064 listings starting at $900
Used Ford Explorer"
1,363 Great Deals out of 71,762 listings starting at $300
Used Ford Ranger"
263 Great Deals out of 7,704 listings starting at $988
Used Chevrolet Tahoe"
1,073 Great Deals out of 36,092 listings starting at $1,700
Used Nissan Frontier"
429 Great Deals out of 20,749 listings starting at $2,500

Used Cars For Sale

2017 Ford F-150 For Sale
8,128 listings starting at $17,015
2016 Ford F-150 For Sale
151 Great Deals out of 136,890 listings starting at $16,985
2015 Ford F-150 For Sale
233 Great Deals out of 8,870 listings starting at $17,958
2014 Ford F-150 For Sale
502 Great Deals out of 10,883 listings starting at $10,450
2013 Ford F-150 For Sale
726 Great Deals out of 14,726 listings starting at $7,727