I got gas, it was running fine, then about half hour later it started missing, running rough, seems to have no power, smells and check engine light is on now.
Sounds like you got some bad gas. Be sure and let the station know right away. They may be on the hook to pay for repairs.
Take the van to a shop and have the computer checked for trouble codes.
The gas tank and lines may have to be flushed.
SOURCE: I own a 2002 Chevy Trailblazer with 4200 vortec
Do you know if the plugs were changed, a bad or broken plug will also cause rough idle and slow acceleration?
SOURCE: 2002 chevy trailblazer has rough idle
it could be an o2 sensor. it could also just need a tune up
SOURCE: 2000 chevy express 1500 van having starting issues
Start with fuel system. Listen for fuel pump humm at fuel tank No humm check wiring to pump for power. Then check for spark at plugs and wires. Remove wire from coil and hold near engine and see arch when you crank. No arch. Replace ignition Modular inside distributor cap or cap or rotor
SOURCE: how do i read codes for my 91 chevy silverado?
Under the dash board there is an electrical block with nothing plugged into it. there are 2 rows of terminals. on the top row on the right is terminal "a". terminal "b" is the second one in from the right. terminal diagram labeling is like this from left to right.
top row,"F", "E", "blank","C","B","A"
bottom row "G","H", "blank","blank","blank","blank"
take a small piece of wire and jump terminal "A" and "B". i found an unfolded paper clip works well. with the terminals jumped, turn the key to the on position.(DO NOT START ENGINE) with the key on, the service engine light will start flashing codes. count the flashes. it will repeat each code 3 times before moving on to the next code. your first and last code will be a code 12. that is just the test code. it lets you know you did it right. you will see 1 flash with a short pause then 2 flashes. after you see that 3 times, your next code will be your trouble codes. when you see code "12" again, there are no more. if you tell me what the codes are, i'll tell you what the mean. hope this helps.
SOURCE: 2002 malibu runs hot.
Sounds like you have a faulty head gasket or maybe a cracked head.This can cause overheating and the check engine light to come on.The code for the o2 sensor is probably caused by coolant getting into the exhaust system and coating the sensor.The coolant fan may work but it cannot remove enough heat from the rad to make the engine cool off.Try some engine coolant stop leak to see if it will help.This maybe only a temperary fix.Let me know if you need more.MOE
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