Ford Focus misfire problems

Filed Oct 8, 2026 · Acceleration, Fuel system · OR

when the vehicle accelerates too quickly or up a very gradual hill, barely any slope, it will slow to a stop. this is in line with the current recalls with other Ford focus 2018s likely caused by the Canister Purge Valve. it has the exact same symptoms, poor fuel economy, rough idling so much so the entire vehicle shakes, and the dangerous part- stalling. I have now stalled 4 times and have been in and out of multiple mechanics for this issue and no one can seem to identify the root and it's getting costly. now they are saying it might be the canister purge valve but if it is I think it should be covered despite my vin not being perfectly aligned because it's ultimately the same issue with the same vehicle, make and model.

Filed Oct 7, 2026 · Engine · 63,126 miles · AZ

The contact owns a 2018 Ford Focus. The contact stated that after the vehicle was repaired under a recall, while driving 45 MPH, the vehicle unexpectedly idled, causing the engine to misfire with the check engine warning light illuminated. The contact stated that the vehicle sputtered during the misfire. The vehicle was taken to the dealer, where the contact was informed that the engine needed to be repaired. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to the dealer to be diagnosed, and it was determined that the cylinder wall had failed and the engine needed to be replaced. The contact was concerned that the failure was caused by an improper recall repair. The contact stated that the failure had not occurred until after the recall repair was performed. The manufacturer was made aware of the failure by telephone, and a case was opened. The failure mileage was approximately 63,126.

Filed Sep 3, 2026 · Engine, Fuel system · IA

There was supposedly a recall of 2012-2018 Ford focuses such as mine, which is a 2018, but somehow my car is not included in this recall even though it seems to be affected by the same problem. I believe it to have a faulty purge valve (forgive me if I am not precise in my terminology) as it stalls after I get gas and try to start it up. I have to rev the engine to get it to stay on. I cannot stop after I get it started because it roughly idles and seems like it will shut back off if I do, which makes this a little dangerous as well as damaging for my car. I am distressed that my car is not included in this recall because I desperately need to repair it before I ruin my engine but I cannot because I don't have any money.

Filed Sep 1, 2026 · Engine · WA

I am submitting this complaint because Ford dealers do not appear to be following Ford Motor Company's published procedure for Customer Satisfaction Program 24N07. I visited two Ford service departments in [XXX] and [XXX]. Both told me they must first perform their own diagnostic evaluation before replacing the canister purge valve (CPV) under 24N07, and that I may be responsible for a diagnostic fee if they do not confirm the issue. Both dealers justified this requirement by stating that it was mandated by Ford corporate. This appears inconsistent with Ford's XXX communication to all U.S. Ford and Lincoln dealers. The 24N07 Technical Instructions already provide a decision process: Step 1 directs technicians to check for specified DTCs, including P0443, OR determine whether the customer reports hesitation, rough idle, or loss of power. Step 2 asks whether any Step 1 condition is present. If yes, Step 3 directs the technician to replace the CPV. (PAGE 16) Nowhere in this procedure does Ford require a separate comprehensive EVAP diagnosis before replacement. Ford's labor operation also includes checking for DTCs as part of the 24N07 service. (PAGE 16) This is especially concerning because CPV-related symptoms can be intermittent. A vehicle may have rough idle, hesitation, loss of power, or a qualifying DTC, but operate normally during the dealer's diagnostic session. Under the dealers' approach, the owner may then be charged a diagnostic fee and still be denied the 24N07 repair. Similar experiences have been reported by other Focus owners online, including diagnostic-fee warnings of approximately $199, $210, $225, and $400. I ask the federal safety agency to review whether Ford dealers are properly implementing 24N07 and whether dealers are adding diagnostic requirements not contained in Ford's December 4, 2024 instructions. Ford 24N07: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 5, 2026 · Engine, Fuel system · PA

Ford Motor issued two safety recalls regarding this, but has since closed them without providing a safe resolution for consumers. July 8 2019 Ford issued Ford Safety Recall program 19S22 (following 18S32) for stuck open canister purge valve (CPV). This can result in a failure to bleed the vacuum from the gas tank, and deforms the gas tank upon failure. This has been confirmed, reproduced, and recalled by Ford before, but continues to happen nationwide to Ford Focus ST owners as a small subset of their vehicles. A stuck open CPV can result in a number of codes. In my case, I got a P1450, Ford-Specific check engine light on the MIL. This can cause inability to start, along with rough idle and stalling while driving. Ford reports closing these safety recalls and provides no further support for the issue.

Filed Feb 7, 2026 · Engine · NY

At 80000miles I noticed misfires and replaced original spark plugs per spec At 107578, misfires occurred, when I pulled plugs pos 1 was completely worn out, as well as pos 4.Codes were seen P0304 and P0301. Car ran well after replacement. I have been troubled by loss of coolant lately and could find no leaks. Also temp gauge in dash “wanders” Being retired I can’t afford to go to dealership. I believe spark plugs should not wear out after approx 25000 miles No overheating of engine has occurred . I drive about 12000/yr. Car is available to be seen. Dealer has not seen car Concerned problem could cause engine failure. Thank you

Filed Dec 7, 2025 · Engine · ID

After recall Campaign 23S64 and the engine being replaced with G1FG-6006-DA and traceability Code [XXX] . Incident Description On Saturday [XXX], while driving on the freeway, my vehicle began sputtering and lost power. The RPMs increased but the speed did not. The check engine light illuminated briefly and then went out. This created an Immediate serious safety hazard to me my passenger and other drivers on the road as I was unable to maintain speed in traffic and had to leave the freeway Immediately. Diagnostic Findings •Initial AutoZone OBD-II scan revealed P0302 (Cylinder 2 Misfire). •Dealer’s own diagnostic later reported P0301 (Cylinder 1 Misfire), with carbon tracking on all spark plugs and ignition coil boots. •Dealer noted the locking tab on Cylinder 3 ignition coil connector was broken, requiring a new pigtail. •Dealer also identified a broken front motor mount, but is attempting to charge me for replacement despite the fact that the mount must be removed and reinstalled during an engine swap. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 5, 2025 · Engine · VA

My wife was driving her car home from work when her car suddenly overheated in light traffic. She pulled over and called me. I came by and we saw that the coolant level was low, so we filled it up to the normal level and she drove it another 20 minutes back to our home. She said it was shuddering the whole way back. I started it in the driveway later that evening and a large amount of white smoke came out of the exhaust pipe and the engine still seemed to be misfiring. I tried starting it again the next day and it would crank but not start. It seems to be an issue with the engine, my guess is a ruptured head gasket. The shuddering caused by the misfires made the car unstable to drive especially if it died while she was at speed with other cars around. The car was towed to a dealer over 30 days ago and they said that it may be related to the open recall, but they won't know until they tear it down. Which they still haven't done. There were no engine codes or prior lamp indications until the overheating event.

Filed Jun 12, 2025 · Transmission · 140,000 miles · WA

The contact owns a 2017 Ford Focus. The contact stated that upon starting the vehicle, the vehicle misfired. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the transmission had failed and needed to be replaced. The vehicle was not repaired. An unknown dealer was notified of the failure. The manufacturer was made aware of the failure and referred the contact to the federal safety agency for assistance. The failure mileage was approximately 140,000.

Filed Apr 17, 2025 · Engine · MO

The contact's niece owns a 2018 Ford Focus. The contact's niece received notification of the federal safety agency Campaign Number: 23V905000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that after his niece started the vehicle, the engine was misfiring significantly. The contact stated that there was smoke coming from the exhaust pipe, and the vehicle stalled. The check engine warning light was illuminated. The contact stated that the vehicle failed to restart and was towed to the dealer, where it was diagnosed and determined that the failure was related to the recall. The dealer had not provided any diagnostic information and informed the contact that the part had been ordered for the repair. The vehicle was not yet repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not contacted. The failure mileage was unknown. VIN tool confirms parts not available.