Windshield cowl panels leak rain water into top of the engine where the two cowl pieces meet in the middle. I suspect looking at other 2015 and 2016 F150 models they have or will have the issue of leaking water onto the engine. Besides possible corrosion or damage to engine, this could cause the engine to stall and maybe a safety problem.

- Springfield, MO, USA

New 2015 F150, accelerates and decelerates on its own. Brakes create loud noise. Wiring harness as it relates to the shifting of the truck was replaced within the first six months as well. Auto off frequently refuses to restart. Loss of complete power on highway.

- Richmond, VA, USA

Truck shudders as transmission torque converter clutch attempts to lock up in third and fifth gear at light throttle position when shifting upward. This vehicle has the 2.7L engine with the auto stop/start feature. With this feature disabled the engine attempts to stall after stopping as if the feature is trying to override the off switch. After coming to a rolling stop and then trying to accelerate into traffic the engine will bog down and then a split second later feel as if it is going to full throttle without me depressing the throttle further. The engine speed surges when attempting to lightly accelerate and maintain speed with the flow of traffic. -Ford needs to give owners the option to turn off the auto stop/start permanently. I was not informed this feature could not be removed when I purchased this vehicle. The dealer attempted to shut it off and only succeeded in disabling the remote start feature. I will never buy another vehicle with the auto stop/start annoyance.

- Cottondale, AL, USA

New 2015 F150 with a vibration/ shudder coming from what feels like the transfer case or possibly the drive shaft. Happens when trying to shift from gear to gear, and on inclines...feels like it is going to stall. Also happens when just cruising at certain speeds. I've had it to the dealer twice and they say everything is fine but they have felt the same problem with this vehicle and ones on their lot. Vibration could lead to more serious problem and actually stall the vehicle while in traffic.

- Holmen, WI, USA

This vehicle has the 'stop/start feature;' which actually shuts off the engine when at a stop and is supposed to 'restart' when the gas pedal is depressed; the 'electrical systems' are supposed to be operative; how power brakes are 'electrically operated' is beyond my comprehension; however, a few days after purchase I was at a stop lite when the engine shut off, and eventually re-started' by itself; the dealer sales staff never informed me of this 'feature, ' and also did not tell me there was an 'override switch on the dash; the fact that I did not override it, and that the engine did not restart when the gas pedal was depressed, to me means that this 'feature' is, on this vehicle, inoperative, and therefore inherently dangerous and life threatening; my wife refuses to drive it, and it was towed in to the dealer on 12/21/15, where it remains; I refuse to drive it as well; lastly, the vehicle exhibited no 'stop/start feature' upon a pre-purchase test drive with the salesman in which we made numerous 'stops' and a friend of mine was with me on that test drive, who will attest to this fact; likewise, it did not have any 'problems' until almost three weeks later, during which time I drove the vehicle daily.

- East Quogue, NY, USA

Total loss of power while driving. At 3022 miles the engine cut off while at 40-50mph. A smart data link was replaced. At 3619 miles the engine cut off again while accelerating at 40-50 mph. Both incidents happened within 5 minutes of starting the engine. Several alerts pop up on the screen to include loss of braking, hill assist, and service engine. First repair was for 10 days. Current repair is 3 days and counting. Currently I am aware of another F150 with the ecoboost 2.7 engine having the same problems with several attempts to fix.

- Chula Vista, CA, USA

After morning startup, vehicle stumbled, hesitated on acceleration into traffic. Vehicle stalled after approximately driving 1 mile. Would re-start, only idle, then stall when put into drive and attempted to re-enter traffic. I had towed to closest Ford dealership for warranty repairs. My vehicle was returned over two weeks later. The service invoice outlined that the low pressure fuel pump was found bad, shorted and connecting plug to harness melted. They replaced fuel pump and repaired harness plug. Vehicle was not fixed. Over the two week period the vehicle was at the dealership, the fuel pump driver, body control module, and last the engine control module was replaced to repair the problem. My major concern is the melted fuel pump plug. I would think there would be adequate fusible link protection to keep this kind of problem from happening especially when affecting an in tank fuel pump. This might lead to fuel fires and also accidents due to loss of power from the engine. I was fortunate to be able to safely get my vehicle on the road shoulder, and then onto a side street with minimal traffic. Another issue is that one device failure creating failures in multiple vehicle control systems that would cost the consumer thousands of dollars out of warranty to repair. I was told that a Ford field engineer was sent to assist the dealership, after his visit, the ECM was replaced which made the vehicle functional again. Adequate overcurrent protection on the fuel pump should have prevented damaging the other critical parts. Ford has put a lot of these vehicles on the road with the fuel efficiency new engineering as a major marketing tool. I fear the vehicle may have been rushed to production with inherent flaws that could be a danger to owners and the public.

- Loxahatchee, FL, USA