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Buick Rendezvous Maintenance and Repair

2196 messages,  Last post on Nov 28, 2009 at 1:37 PM

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#2154 of 2196 Re: Possible fuel pump issue [ypsimatt] by ypsimatt May 20, 2009 (4:57 pm)
Replying to: ypsimatt (May 20, 2009 4:22 pm) I thought about this some more, and there is one legitimate reason to replace a fuel delivery module for a P0453 code. IF the fuel tank truly does have high pressure and IF there is a valve in the flange of the fuel delivery module to vent vapor and IF that is the highest vapor valve on the fuel tank and IF that valve is stuck shut, then replacing the fuel delivery module could be appropriate to allow your tank to vent. I haven't seen the Rendezvous tank to know for sure, but I would say this is a real long shot. If the P0453 code ever sets with less than a 7/8 tank of fuel, this is not the problem because one of the other valves on the tank should be venting.
#2155 of 2196 Re: Possible fuel pump issue [ypsimatt] by dabacon May 21, 2009 (1:41 pm)
Replying to: ypsimatt (May 20, 2009 4:22 pm) I appreciate your advice and expertise. I had a dealer look at the problem as well. They stated that water leaking from the air conditioner had gotten on to the fuel pump and the wiring and connectors around it, rusting and corroding them. However the fuel pump itself should be ok they said. The dealers wanted even more money for the repairs and said that the pump could lose pressure and the car not start or just stop running while driving. However they said that could happen tomorrow or two years from now. After they reset the P0453 code, the check engine light has not come back on. I live in a very arid area, but had just left a pretty humid area the day that the light came on. Some of your assumptions have already proven to be true it seems, but I still don't know if replacing everything is necessary at this time. The replacing-part-by-mileage section of the owner’s manual never said anything about having to replace the pump. However, with the water leaking it may have done enough to warrant that. I probably need one more opinion now about the extent of the water damage on the pump (and get an extension for the tube where the water leaks out so it can go directly to the ground). I've been driving it for 2 weeks now with no problems Replies to this message: 442455 (May 21, 2009 7:41 pm)
#2156 of 2196 Re: Possible fuel pump issue [dabacon] by 442455 May 21, 2009 (7:41 pm)
Replying to: dabacon (May 21, 2009 1:41 pm) The fuel pump is located INSIDE of the fuel tank, so there is no way water dripping would affect the pump itself at all.   There is an electrical connector (C305) located under the car almost under the drivers seat. This connector has numerous wires, one of which supplies power to the fuel pump. Some owners have had mosture, salt spray, etc get into those connections and cause problems.   A few owners that had stalling, no start, engine shut off as if the key were turned off, etc traced their problems to the connector C305. Try an internet search for the C305. Perhaps this is what the mechanic is talking about.    I doubt if the AC condensation would be able to travel that far and get into the connection. I think the vent tube is on the passenger side, not the drivers side.
#2157 of 2196 02 BCM Issues by glesser May 25, 2009 (7:44 pm)
Hey All. Purchased an 2002 Cx Vous about 2 years ago and have not had any issues until now. Recently I got into car went to start it and got the Pass Key error - where the radio locked up, and the error for PK3 showed up on the dash. I was not able to pop the back trunk or roll the windows down. I shut the truck off - gave it a few minutes, and everything was fine - except the radio says CALIBRATE. I have been driving with this issue for about 2 weeks now - but it seems to be a little more severe. Examples - daytime running lights will not shut off, or interior lights will not shut off when truck is off. Some times when pressing the LOCK on the FOB - it locks the doors, and then the horn does not honk. Sometimes when the truck is off, everything looks good, the windows still go down even after I open the door. I had the ODB scan tool take a look at the truck and it said P0141 - bad O2 sensor - so I know I have to replace that for sure, but no other errors came up. I have followed up with every possible forum to see what I could do and I tried the uplug battery option, and it fixes the issue sometimes for 8 - 10 starts and others it only fixes it for one start. I called the local GM dealership here in London Ontario and was advised it is a definate BCM issue. COST 220 for them to scan the codes, 899 for a new BCM and 110 an hour for labour - with a minimum 4 hours work. Before I go and pay thru the teeth on this one - can any one help me out? is it the BCM? Am I being ripped off in the cost department. Any and all information would be greatly appreciated, as pulling the positive every night is starting to take its toll. Replies to this message: jdks (May 27, 2009 10:52 am)
#2158 of 2196 Re: 02 BCM Issues [glesser] by jdks May 27, 2009 (10:52 am)
Replying to: glesser (May 25, 2009 7:44 pm) There is a place in Oshawa where you can get your BCM fix - I think that the name is Custom Auto or something like that...I may have to check if I still have the receipt from them. Apparently, the dealers their defective units to them to get them fix - and it come with 1 year warranty... back in 2006
#2159 of 2196 04 Rendezvous Cruise Control Module by boko_1 Jun 03, 2009 (5:43 pm)
Where is it located and can I replace it myself? I found some used module on ebay. Seems pretty straight forward. Any tips?
#2160 of 2196 Re: How do you remove the BCM [anthonyef] by hismail Jun 13, 2009 (6:56 pm)
Replying to: anthonyef (Dec 09, 2008 6:28 pm) Plz send me the info about how you replace the thermostat on the rendezvous without taking out the crossover exhaust pipe. That will be very helpful for me because I spent more than 3 hours to reach the dam Bolt on the crossover exhaust pipe but no luck. thanks for the help Replies to this message: anthonyef (Jun 14, 2009 3:44 pm)
#2161 of 2196 Thermostat housing by anthonyef Jun 14, 2009 (3:44 pm)
Replying to: hismail (Jun 13, 2009 6:56 pm) The hardest part is the back bolt on the thermostat housing. I was able to get a wrench on it and use a large screw driver as a lever from the side and got it to loosen the bolt that way. Once loose, it takes a while, but it will turn a little bit at a time. There was no way i was taking off that crossover pipe because I could not get to half of the bolts. Everything else will come off, just the back bolt is tough. Good luck.
#2162 of 2196 Re: Surge or Spike in engine? [brianw2] by elazteko Jun 22, 2009 (11:47 am)
Replying to: brianw2 (May 22, 2008 4:14 am) Is this thread about the 2006 Buick Rendezvous surge still going? I have a the same problem. The car has 42,000miles and it will do that rpm surge thing when your cruising on level ground on the freeway. This isn't normal operatation. Anybody get a fix yet on this?
#2163 of 2196 speedometer skitzing on 2005 rendezvous by killerbee2 Jul 13, 2009 (4:47 pm)
It works fine most of the time but on occasion it reads faster than I am actually driving. Sometimes it doesn't read anything. Anyone know where to start troubleshooting this problem? Replies to this message: cassandraj (Jul 14, 2009 3:49 am)

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