SOURCE: 2004 Audi A4 1.8 - jerks/jolts while accelerating from 0-20 mph
It sounds like there may be an issue with your ignition system.
Check the ignition wires, distributor cap, spark plugs.
SOURCE: 2000 Pontiac Montana... Turn on... Good. Drive
No, O2 Sensor would make your van to be none fuel efficient at least or won't change anything if it's the O2 Sensor or Bank2 ( It mean's the 2nd one, the 2nd one is a dummy.. it just read what's going out from the catalytic converter and tell's the computer if there's a change since the reading of the first 02, so the computer see if or not the catalytic do his job ) For your Jerking and Jumping problem.. those Gm Van has alot of transmission problem and maybe your transmission on a way to take vacancy or it is just missing oil ! Check Oil first, for that do that when the Motor is Cold, Start you Van Leave it in "Park" Position, Pull the Dipstick of your transmission ( Should be the Red one ) clean the end of it with a Rag and put it back, pull it a gain and check if the oil is in the reading, if not add the missing oil while the motor turn's, and recheck it until it's full ! Otherwise if the dipstick show's Full, Here's a tip's go to your local autopart's supplier or store that sell's car product such oil's, coolant ect.. ! Buy a Bottle of : Lucas Transmission Fix, Remove the Transmission Plug, and remove about the half of the oil ( Not the Whole amount of oil, only the half it's important ! ) and put the plug back well tighten, pull the dipstick and add oil from the dipstick tube with your bottle add about the half of the bottle, start your van, check the oil level if it still missing some oil add the amount it require to be full ( While Motor is Turning ) ! Important do not Overfull the transmission ! This Should Work or not, if not.. I would say you need to Replace your Transmission, What I told you is about 15minutes of your time and a couple of dollar ! Best thing is to bring your van to a Transmission Shop they will tell you the problem !
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SOURCE: The service engine soon light is on. The check
Have the computer scanned if you want a quick scan have Auto Zone or the like scan it for free , they also will give you a printout of the problem code, if any, that may be stored in the computer system.
Trans. fluid is only checked on a running in park warm engine, if it is not running the fluid will read too high on the stick showing an overfilled condition, use only recommended fluid, should have the type requirements stamped on the transmision dip stick.
When filling do it slowly and add only half a quart at a time checking the level each time as to not over fill.
The trans. fluid and filter should be changed every 30,000 miles as preventive maintenance proceedures.
Hope this helps, good luck!!
SOURCE: almost no acceleration engine will not top 2K RPM under load.
Have you checked the air inlet sensor on the air filter. If this fails the engine goes into safety mode which it seems has happened. I don't know the specifics of the Santa fe but this is a feature of most modern electronic engine systems.
Testimonial: "Will check those - thanks for the tip. Read my update..."
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