Q: Engine running rough
Engine has been running rough for a few months, engine would stop at red lights occasionally, took it in, they changed spark plugs and the gas cap, worked better for a while. About two months ago it started again, the engine would choke and sputter and die, or almost die but would recover. It would always come back on, if it died. This week the check engine came on with codes p0335 and p0456. This is our only vehicle so we are hoping to get this resolved quickly. Thanks for the help, Nick.
My car has 70000 miles.
My car has an automatic transmission.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Car vibrates and squeaks
Hi there. A high speed vibration is typically caused by a wheel balance problem. The tires would need to be balanced by a tire shop. As for the squeaking, if that only occurs when accelerating it may be caused by...
Car sputtering like it is out of gas
Hello! It sounds as if you have a restriction in your fuel supply or bad fuel pump. I suggest checking the pressure of the fuel system. A bad fuel pump or clogged fuel filter will cause the symptoms you described....
Can car jolting be caused by bad IAC valve?
Yes, if it's bad it creates vacuum leaks, and when you get vacuum leaks, it gets wrong data to the computer and it gives the wrong amount of fuel to the engine. The air-fuel ratio is mixed and that can...
Rear pinion seal leaking. Would i also need to change the flange?
The flange is integral with a splined yoke. The yoke segment (of the flange/yoke) has a precision, machined, highly polished surface which mates with the rubber seal (https://www.yourmechanic.com/services/pinion-seal-replacement). Since the rubber seal is spring loaded and is under tension against...
Would a car that is out of alignment cause gas pedal vibration?
What is causing your pedal to vibrate should not be related to your alignment issue. Although your alignment issue may cause a substantial amount of vibration, this would be generally limited to the outer extremities of the car and not...
Following collision damage to a vehicle's front end, which procedures may be used to determine if axle damage exists?
Hello - this task is best handled by a collision repair estimator at a reputable paint and body shop. S/he is trained to evaluate visible and not-so-visible damage, and the costs to repair. Contact a reputable paint and body shop...
I have a 2003 lincoln navigator.The drivers fornt door power window does not work. I replaced the regulator, main switch and motor
If the other 3 windows function using their individual door switches but there is no function, for any of the windows using the main driver door switch console, that could be due to the wiring in the driver door having...
I have a Lexus CT200h dose the in tank fuel filter require replacing or is there an inline filter that is changed for servicing
Around the turn of the century manufacturers started using what we sometimes call "dead end" fuel systems. These systems put the pump, filter and pressure regulator inside the fuel tank eliminating the fuel return line. The fuel does not circulate...
2017 Tacoma DRL fuse possible popped the DRL switch won’t turn them on without the whole headlight being on..
Did you check to see if your DRL lights come on when you go into gear? The lights will only come on when you go into gear on most vehicles. If not then since you are under factory warranty I...
Related articles
A Buyer’s Guide to the 2012 Jeep Grand Cherokee
Though Though the Jeep Grand Cherokee is not a new model, it got a complete redesign in 2011, and the 2012 Jeep Grand Cherokee saw even more improvements. While other SUV manufacturers have sat on their laurels, Jeep has done...
A Buyer’s Guide to the 2012 Jeep Liberty
Thanks Thanks to iconic models like the Wrangler and the Cherokee, Jeep has long been synonymous with off-roading, but that’s really not the case with the 2012 Jeep Liberty. A great around-town SUV, the Liberty isn’t really made for getting...
The Best Used Cars to Buy If You’re a Photographer
If If you are a photographer, and you’re considering buying a used car, the big thing to consider is the type of photography you do. Thanks to the advances in digital photography, chances are you’re not hauling around a lot...
Browse other content
Estimates
Maintenance
Cities