Q: 1999 Dodge Ram 1500 sport 4x4

asked by on

Truck had started sputtering and jurking so I did a full tuneup after the tuneup it still did the same thing check engine light came on said misfire on cylinder eight so I changed out number eight fuel injector and is still doing the same thing had to replace spark plugs again because #8 and number 3 were burnt #8 worse then 3 and fuel consumption is terrible 143 mile on a 26 gallon tank!

My car has 147000 miles.
My car has an automatic transmission.

If you didn’t change plug wires, cap and rotor, those could be causes. Also, the distributor itself would have to be tested. As far as the fuel injectors, you just want to be sure they are actually getting a signal, that is they are electrically connected. If you cannot find a fault in the ignition system or fuel supply, check compression in the misfiring cylinders as there could be a mechanical cause of the misfiring. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a misfiring diagnostic and the responding certified mechanic will get this diagnosed and resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
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. 1999 Dodge Ram 1500 sport 4x4

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: Check Engine light on due to misfire

Code P0301 indicates a misfiring issue. You likely need an ignition coil. There is a possibility that oil is leaking into your valve cover, which is causing this. If you haven't replaced the spark plugs, you will need to soon....

Q: Rough idle and stalling with exhaust popping

The first thing to do is to get rid of the oil type air filter. This oil bath type filter can cause the mass air flow to be contaminated with the oil from the filter you are using. You should...

Q: Left turn signal malfunction.

Check the bulb contacts, front and rear, and just make sure there is no obvious corrosion. Check the headlight harness connection to the headlight bulbs as well. From what you are describing, there is some sort of short or voltage...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...