I had same issue with my 98', after replacing plugs,wires,map sensor,searched time and time again for vac leaks,both o2 sensors etc.the negative terminal wire from battery to engine was slightly loose at the engine.I pulled that end off and cleaned and tightened and ran like a champ immediatley! Only reason i found that problem was accidental,when i was shaking some wires around it arched at that spot.
SOURCE: 96 CHEVY CAVALIER. R&R DRIVE AXLE SHAFTS. AUTO TRANS.
If your looking to replace them, wich is what most do today, it is cheaper to purchase a axle with new cv joints than to rebuild them. It is a very simple job in todays cars, remove tires remove lower tie rod , remove nut in center of the rotor and pull wheel assembley to the side hanging from the strut, pull axle out replace the transmission seal, push new axle in. When putting wheel assembley on, use a hydraulic jack on bottom of the rotor to push it to the axle splines and put the new nut on .
SOURCE: rough idle on 1999 chevy cavalier z24
Check for vacuum leaks. Spray some carb cleaner or WD40 around the intake manifold, trottle body and any vacuum lines. Check for loose connections on engine wiring harness (Maybe you disconnected a sensor, and forgot to re-attach it?).
SOURCE: 1997 2.2L base Cavalier idles rough and randomly stalls
Have they checked your TPS sensor as this is the most common cause for rough idles and stalls...
SOURCE: How to change spark plugs of Chevy cavalier 2002
for the most part they are in between the fuel injector the best thing for you to do is stop by your local GM dealership in the part department and they be able to print you off the pictures and diagrams you need if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car Merry Christmas and Happy New Year as always wish you the best of luck Michigan Man.
Testimonial: "great thanks for the info. bobbotg2005"
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