Q: Fuel rail pressure is all over the place and the truck bucks badley going down the road. Only code that comes up is P215a.

asked by on June 19, 2016

Fuel rail pressure is all over the place and the truck bucks badley going down the road. Only code that comes up is P215a. The speed sensor on rear differential was just replaced. This all started happening right after I blew the serpentine belt and replaced my powersteering pump

My car has 140000 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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Car is totally dead
Sounds like you might not be getting any power out of the battery. Car batteries are 12.6 v. when they are fully charged. If the voltage is 10.5v. The car won't crank but all the accessories will still function. At...
No cold air
There are many reasons why the AC would only blow hot air in your car. The most common would be a pressure switch or low refrigerant. Over time the refrigerant will leak out and once it is low enough it...
Front end damage from hitting a curb. Left front wheel/suspension damage.
Hi there. I'm sorry to hear about the damage (https://www.yourmechanic.com/article/how-to-survive-a-car-collision-by-joyce-morse) incurred on your car. This task is best handled by a collision repair estimator at a reputable paint and body shop. They are trained to evaluate visible and not-so-visible damage,...
Cylinder 4 misfire - 2004 Ford F-250
Hi there - yes, these plugs, and their cylinder heads, have proved to be a bit tricky. First tip is to replace the plugs with the engine warm. Second tip is to use one of the "deep sockets" specially made...
Transmission is skipping 3rd gear
Hello - a "skipping a gear condition (https://www.yourmechanic.com/question/car-skips-gears)" like this is most commonly a failure of the 3-4 gear clutch pack (for the 4L60E transmission). It is also possible that one of the valve passages in the transmission is damaged,...
I hear a pop sound whenever I turn the wheel
There are several possible causes for a pop noise when turning the wheel. Finding the cause will really depend on what area the pop is coming from. Does it come from the steering column, under the dash, the engine compartment,...
My car will not start. The lights come on however it will not turn over. When I have the battery charge it starts and will run
Hello, and thank you for writing in. The battery is likely going bad. There are a lot of presetting and memory that the vehicle must store when the car is off, and this pulls a small amount of electrical power....
'72 Mach 1 with 351C. Runs, idles, revs in park. Sputters, chugs and coughs in Drive. Any suggestions?
Check for proper advance of ignition timing. In particular, verify that advance curve you observe matches factory spec. Measure fuel pump output/pressure against factory spec. If engine compression is good and balanced, apart from timing check and fuel pressure check,...
My windshield wipers stop working, why mechanic charge $100s plus labor to diagnose what wrong
The wiper motor system consists of a switch, a small electric motor including transmission, interconnecting wiring, and steel linkages to convert the rotational output of the motor to the reciprocating motion needed to operate your wipers back and forth. In...

Related articles

A Buyer’s Guide to the 2012 Ford Focus Electric
In In 2012, the Ford Focus Electric model went a step farther than other eco-friendly cars. Instead of creating another hybrid model, Ford chose to offer a fully electric vehicle with a very impressive range of 76 city miles and...
2012 Chevrolet Malibu vs. 2012 Ford Fusion: Which One Should I Buy?
When you want a midsize sedan, you’re looking for something that will offer you the best fuel economy for the size as well as additional safety features that will keep your family safe while you’re driving across town or around...
How to Find the Keyless Code on a Ford Explorer or Mercury Mountaineer
Many Many Ford Explorers and Mercury Mountaineers were manufactured with an option known as the Ford keyless entry keypad. Some models refer to it as SecuriCode as well. It is a five-button numeric keypad that is used to: Eliminate fumbling...