Q: truck won't run at hight mph

asked by on

my trucks was marking me cat code for 2-3 months but i steal ran it and i changed a rear tire in emergency and from the it has been not running well i changes both cats and the check engine went away but steal runs the same

Hello. The rear tire change would not have anything to do with the operation of the catalytic converter. There is however a possibility that when the catalytic converter codes came up that this triggered other issues as a result of continuing to drive it.

As you may already know, the catalytic converter works to convert toxic exhaust gases to less harmful pollutants to dispel into the environment. When this is clogged and not working properly, this causes these gases to be backed up into the vehicle’s system not allowing it to properly release combustion gases. As a result, this can cause other problems which may have been the issue to begin with that originally caused the cat codes to show up. I would suggest having an expert from YourMechanic come to your home to diagnose the codes that showed up with a scan tool to download critical data and pinpoint the cause of the problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. truck won't run at hight mph

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

Get a quote

What others are asking

Q: Aftermarket Performance Products - Tuning Problem

Hello - your problem is most likely with the electronics, the transmission controller, rather than the transmission. But since the engine and transmission controller communicate with each other, the first task is to read the problem codes which are setting...

Q: My car is making a noise near the front end

Did you only replace the one tire? If you've noticed the front tires having uneven tread than the other then you will get a tire noise from the transaxle trying to turn the wheels at the same speed. Since one...

Q: Overheating - 1998 Jeep Grand Cherokee

Hi there. There are a variety of things that could cause this. I would check the following: Cooling fan relays - these tell the cooling fans when to turn on depending on the temperature of the motor. Thermostat -...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...