Q: Truck won't stay running no check engine codes

asked by on January 23, 2017

My truck a 1995 Ford f150 4.9 recently started bucking, spuytering, and stalling. The other night I drove it about 5 miles it started bucking, loss power, and started wouldn't restart. Came back the next day it started ran rough drove it home now it won't stay running almost like it's getting to much fuel. No check engine codes. What may be my problem.

My car has 360000 miles.
My car has an automatic transmission.

You should first identify if the vehicle has California emissions or not. The difference is one will have a mass air sensor in the air cleaner and the other will have a MAP sensor mounted on the a/c evaporator case with a vacuum line and connector on it. If you see what one you have an disconnect either one and see if vehicle will start and run better. It will not run perfect but better if you have a bad sensor. If it runs better then replace sensor and road test to recheck system. If you have a scanner you can scan and retest for codes.

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

INSTALLED NEW ENGINE WHEN BOLTED TO TRANNY I CANT TURN ENGINE BY HAND

Hello - your order of assembly suggests you bolted up the torque converter to the flexplate before the engine was completely snugged up to, and bolted to, the transmission bellhousing. I suspect this has caused the converter to come out...

What does the liftgate ajar Warning Light mean?

The liftgate ajar Warning Light is located on the instrument panel. This light illuminates when your trunk is not properly closed. Secure your trunk properly, and the light will turn off.

Vehicle stalled while driving

There are countless potential causes for your problem. The first step is to retrieve the diagnostic trouble code (DTC) associated with your check engine light. This code provides a starting point for the diagnostic procedure. Regardless, any testing will have...

car has bad smell when I run it coming from under the hood

For this diagnosis it would've been helpful if the smell was described in more detail to help you with the problem. For example, the smell of a dead animal versus the smell of burnt oil. If you cannot describe it...

How do you test a used vapor canister?

Hi there. Take an air hose and with using low pressure, blow air into the tank pipe and see if the air comes out of the other pipes with no restrictions. Then with using low pressure, blow air into the...

What does the “PARK BRAKE ENGAGED” warning mean on the message center?

Your car’s message center can display a very wide range of warnings concerning critical vehicle systems. If you see a message that reads “PARK BRAKE ENGAGED” displayed, it means that your parking brake is on and you need to disengage...

Car is dying when taking it from reverse to drive

Hi Andrea. Thanks for contacting us today. This can be a very tricky symptom to diagnose, as it could be a mechanical problem within the transmission, dirty transmission fluid that simply needs to be flushed, or an electrical issue with...

Location of evap control solenoid

According to the manual it states the location of the purge control valve is connected between the intake manifold and the vapor line to the carbon canister under left side of vehicle behind drivers door. Follow the vapor pipe from...

My truck shakes at traffic lights

Hi. The symptoms you describe could be a dirty or malfunctioning idle air control valve. Especially when hot, when the engine gets a leaner mixture of air and fuel, the idle air control will have a greater effect on idle...

Related articles

How to Buy Good Quality Sensors
Sensors Sensors for autos have many of the same characteristics that other types of sensors do – they are created to detect a signal, respond to chemical or physical variations such as distance or temperature. These signals are then converted...
The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...
Symptoms of Bad or Failing Fuel Injector O Rings
Common signs include an odor of fuel in the car, fuel leaks, and the Check Engine Light coming on.