Q: 98 Chevy Tahoe 5.7 Vortech misfire at idle back fire under load the truck has new distributor new wires new plugs

The radio presets allow you to store your favorite radio stations, so that they are easy to access. Your sound system is able to story 18 radio stations (six each in FM1, FM2, and AM). To set a favorite station,...

Hello. I think you may be having one of the following problems: Mass AirFlow (MAF) sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement): the MAF sensor helps to control how much air mixes with the fuel. If the sensor is defective, the van will get an...

Hello. Thank you for writing in. At first the issue sounds like an electrical problem. There are a number of sensors that will cause the engine to stall. Some of them are not monitored by the computer and will not...

Hi there. The code P0011 (https://www.yourmechanic.com/article/p0011-obd-ii-trouble-code-camshaft-position-a-timing-over-advanced-or-system-performance-bank-1-by-jay-safford) is stored for the camshaft position sensor is not registering to the computer. Check the camshaft position sensor and see if its working and plugged in. It is possible that the sensor has failed...

In many cases with new cars, a low refrigerant charge can cause your symptoms. You must visit a repair facility or hire a technician certified for working with the substances found in the air conditioning system. The trained professional will...

Hi There, If there are misfires, there should be a check engine light on (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection), which should have stored specific fault codes. Many times these fault codes will indicate whether the misfire is related to a specific cylinder or if...

Hi there - great diagnostic work! At this point, having identified which circuit is causing the drain, you will need a wiring diagram that identifies what other devices are on this circuit (clock, underhood light maybe?), and could be drawing...

Hi Cristian. P0341 is an OBD-II generic code - click this link to read more about the code and possible repairs (https://www.yourmechanic.com/article/p0341-obd-ii-trouble-code-camshaft-position-sensor-circuit-range-performance-by-jay-safford) - that says the engine control module (ECM) detected the engine camshaft position sensor circuit is not within...

Hi Christopher. Thanks for sending in your question today. Although using the recommended oil is always best, you should be fine if you added a quart of 5w30 to your Altima. I would recommend having the oil and filter changed...