Truck is misfiring
10

Asked by Nick May 27, 2017 at 07:54 PM about the 2009 Ford F-150 XLT SuperCrew 4WD

Question type: Maintenance & Repair

While idle it shakes then stops repeatedly. Taking off it
shakes hard and has little power. Only from the initial start
of the drive though. It shakes a little every now and again
while accelerating. Once I reach about 45 while
accelerating normally it shakes really hard and my check
engine light flashes. I can get to the speed I need to and
the problem goes away after a little bit. Before I changed
the spark plugs if I let off a little and tried to speed up
again it would shake hard. That problem is gone. I get the
codes P0300 P0306 and P0135 (probably unrelated) I
have replaced the ignition coil for the 6th cyclinder, and
the plug and wires before the bundle look fine. Any
suggestions?

2 Answers
10

Nick answered 6 years ago

To add detail I am able to accelerate to 60 slowly without a misfire, but going at a decent pace it misfires. I also cleaned the MAF sensor if that would help any.

1 people found this helpful.
Mark helpful
73,370

OJ answered 6 years ago

PO 300 code is generated when the system detects there is more than one cylinder misfiring. The PO 306 code is probably pointing to # 6 cylinder misfiring along with others. The PO 135 is a code which indicates there is a missing signal from the ignition. I'd check the fuel pressure first as it costs nothing if you have the twenty buck gauge.

Mark helpful

Your Answer:

Related Questions

  • Truck is misfiring 2 Answers

    While idle it shakes then stops repeatedly. Taking off it shakes hard and has little power. Only from the initial start of the drive though. It shakes a little every now and again while acceleratin...

    2009 Ford F-150 XLT SuperCrew 4WD

    -

    Maintenance & Repair

  • My truck is misfiring 1 Answer

    My truck is misfiring at an idle and it won't go past 65 mph. I changed the spark plugs and wires and air filter. What should I do next ?

    1997 Ford Ranger

    -

    Maintenance & Repair

  • truck is overheating 3 Answers

    okay i just finished up repairing my truck 96 ford f150 5.0L I replaced the engine/coolant sensor, the thermostat, water pump, new antifreeze (right mixture) filled it up, let it run for about 3 min...

    1996 Ford F-150 XL LB

    -

    Maintenance & Repair

  • What is wrong with my truck? 3 Answers

    Truck only starts with a jump, then wont start again. Today yellow/orange tool light and red brake light on dash came on. I was able to get it back home a few blocks but it is dead again. I just had...

    2004 Ford F-150 Lariat Ext. Cab 4WD

    -

    Maintenance & Repair

  • Why is my truck loping at idle? 4 Answers

    When I first crank my truck it idles fine for 15-20 seconds then drops lower and starts to lope. Even giving it a little nudge on the pedal will not smooth it out. After about 15 minutes of driving it...

    1988 Ford F-150 XLT Standard Cab SB

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 13,473 nationwide F-150 listings starting at $3,888.

Postal Code:

Shortcuts

Search Ford F-150 Questions

CarGurus Experts

  • #1
    OJ
    Reputation
    41,870
  • #2
    Gene Arnett
    Reputation
    15,990
  • #3
    Rowefast
    Reputation
    15,490
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
167 Great Deals out of 7,420 listings starting at $6,995
Used GMC Sierra 1500
141 Great Deals out of 7,842 listings starting at $4,944
Used Toyota Tundra
22 Great Deals out of 918 listings starting at $10,698
Used Ford F-250 Super Duty
23 Great Deals out of 748 listings starting at $3,990
Used Toyota Tacoma
42 Great Deals out of 780 listings starting at $9,975
Used Dodge RAM 1500
3 Great Deals out of 81 listings starting at $3,990
Used Ford Mustang
35 Great Deals out of 1,596 listings starting at $7,999
Used Ford Ranger
25 Great Deals out of 690 listings starting at $6,445
Used Chevrolet Silverado 2500HD
22 Great Deals out of 1,590 listings starting at $5,990
Used Ford Explorer
62 Great Deals out of 1,825 listings starting at $6,990
Used Jeep Wrangler
143 Great Deals out of 5,937 listings starting at $2,995
Used Chevrolet Colorado
43 Great Deals out of 1,160 listings starting at $4,995

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.