2005 BUICK RENDEZVOUS rough idle

Harvey N Tawatao

• 3854 Answers
• Posted on Jun 22, 2009

SOURCE: How do you get to the set of spark plugs along the

Obviously, the front three are fairly easy to reach. The rear three are the real problem. The easiest way to do the rear three is to jack the front of the vehicle up, crawl underneath until you can see the back of the engine from the ground, get real comfortable, making sure the engine and exhaust are cooled down, reach your arm up and pull the boots, very carefully.... then replace the spark plugs. You will not be able to see the plugs themselves, but this seems to be the easiest way to change them. Make sure you have a swivel spark plug socket and extensions and replace the spark plugs with platinum plugs so you can get another 100,000 miles and make sure you have anti seize so you can remove the plugs again in the future. The golden rule is that the engine has platinum plugs in there now and there good for 100,000 mile, if there are no misfire try not to change them unless you think your close to the end of the spark plug life or the check engine light came one to indicate that there are misfires. Good luck and hope this helps. 

SOURCE: heated seat 2005 Buick Rendezvous

ASE mechanic
sounds like the thermal regulator is not operating properly. and it doesn't hurt to call and see about the warranty!!!

SOURCE: program a garage door opener in 2004 buick rendezvous

I cannot find the 2004, but you can buy it from the dealer. You can download the 2003 and 2005 from this link. http://www.extendedgmwarranty.com/owners-manual/buick_owner_manuals.html

SOURCE: how to reset oil life indicator for buick

you can try and disconnect the battery cable. usually resets the PC

SOURCE: Buick Rendezvous 2002 need codes?

the BCM needs to be programmed to operate the computer. a GM techII is now required to calibrate BCM to airbag, stereo, keyless entry, and control pcm data. This is required to make it all work. a gm service should have it done within an hour or less just call and ask them how much it would be to program new BCM. it might cost @$75 to $125 but it is needed, to allow the BCM to work properly.

Testimonial: "ok...i bought the bcm on line (used)...but the gays in the dealer says i have to buy a new one..because the used cannot be to reflashed...or recoded."