Questions & Answers for: truck run poorly new mass

...truck perfect. I pulled a 20 ft enclosed trailer at 75 mph no prblem....for about 150 miles. All of the sudden it was like you threw out an anchor. I lost almost all my power. It would run normal ...

...truck perfect. I pulled a 20 ft enclosed trailer at 75 mph no prblem....for about 150 miles. All of the sudden it was like you threw out an anchor. I lost almost all my power adn the check engine ...

...new ecm brain ready to program and try. The joker is:...my oem 3.4 went bad and this is a replacement '00 olds 3.4, with 64,000 mile (so it sat up for 5 to 6 years. Yes, it was serviced and ...

run poorly (mine warned me... then stranded me completely (far far from home... no on-board-diagnostics)) Were I you... I would NOT be ripping parts out of an already WOUNDED vehicle without more than

run well with mass air flow connected , once electrical connecter remove it runs great, tryed a new mass sensor but still runs poorly . what should i look for ? You installed a new Mass Airflow sensor

...mass airflow sensor before the air temp sensor, as the air temp sensor does not have as much bearing on whether the engine runs well or not. no year, wow. 1996 or newer but how ...

...new fuel pump assembly,fuel filter,Mass airflow Sensor,water pump,thermostat,drain & flush radiator,PCV valve, cleaned IAC,throttle body,checked and cleaned spark plugs which looked really good didnt ...