Edmunds.com | Inside Line | Auto Observer Your Account | Help | Directory
You are here:
![[F]](http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/site.gif){kind=small}
Forums
Sedans Buick LeSabre Buick LeSabre Starting/Stalling Problems
167 messages, Last post on Oct 23, 2009 at 4:08 AM
You are in the Buick LeSabre Forum. Your Hosts are pat & karens
|
Replying to: imidazol97 (Oct 22, 2009 2:00 pm) I checked my lines and they appear good slightly cracked housing but no bubbles or sound when the car is running so I don't think that's causing an issue yet but I am replacing them to make sure. The Idle is kinda off. Its not so much high as it is shaky. I had a J30 with a ton of misfiring problems and the Buick's shake at idle kinda of reminds me of a slight misfire. But again the rpm are not that much off from what they have been just a little bit rougher idle. My brother checked the ERG or EGR or something to do with the vacuum lines at the top of the engine and said it was okay. My wires say they are AC Delco premium and I got the car at 90K and they had claim it had just had a full tune up. So I think I am going to try to change out plugs wires and coils to just make sure. Also the trip does not work since I changed out the VSS about 3 months ago, but the odometer is working. I don't know if that has anything to do with it. I didn't check the fuel pump but my car was low on gas so I just went and filled up with the new top post and while the car was not dying at every turn there was still a slight sputter and at one turn I put a little bit extra gas and it kind of hiccuped, didn't die but dropped rpm like it was dying then picked it back up, that turn was before the gas but after the connector was replaced. I didn't replace my neg because it was not stripped and the wire seems slightly too short. How could I check my CPS to make sure it still is functioning? Thank you again for responding, again if any ideas keep them coming because I afraid to turn it over to a mech and not have any idea what the issue would be. |
|
|
|
|
Replying to: gboyle84 (Oct 22, 2009 3:12 pm) Did you clean the MAF sensor? TAke it off and look at the two thin wires with tiny heat sinks in the middle for fuzz. Clean with spray mentioned above. Do not touch the wires. |
|
|
|
|
Replying to: gboyle84 (Oct 22, 2009 3:12 pm) Another thing to mention is that more people than average have had trouble with the computer on 94 and 95 H-bodies, leSabres and Bonnevilles. You may be looking at a new computer (rebuilt) where you change the prom you have into the new remanufactured computer. I think the original wires said Packard Electric. So ifyours say Delco or AC on them, they have probably been replaced. If they haven't hardened from heat, they are probably fairly fresh. This case really begs for someone with another running equivalent car where you can switch the MAF sensors and switch the computer to see if that fixes your problem. j Otherwise you need a Tech II or a computer analysis device to see what data the computer is seeing and sending.
|
|
|
Replying to: imidazol97 (Oct 22, 2009 4:02 pm) Do you think it could be the fuel filter? I have not changed that out, I'm guessing that the fuel gauge will tell me if that's bad. Also, my horn doesn't work. I don't know it that has anything to do with this problem. My brother thinks that the car has a wiring malfunction in that some where there's a bad wire that's grounding out, do you think that may be the case? Thanks again for all your help, if you are ever in Houston I'll buy ya a beer or something I really appreciate all the help.
|
|
|
Replying to: gboyle84 (Oct 22, 2009 7:52 pm) Thanks again |
|
|
|
|
Replying to: gboyle84 (Oct 22, 2009 7:52 pm) The MAF sensor needs to have the two wires inside clean. They catch fuzz and form bits that change their sensitivity. MAF spray helps. I also used a camel hair artist type brush to gently help the MAF cleaner. IF the air intake was leaking dirty air after the air filter through the accordian, that would explain the dirt on the honeycomb and probably helps dirty up the MAF. The black goo is oil fumes from when the car is shut off that come up into the upper intake manifold. The goop also can coat the inside of the metal throttle body where the butterfly valve needs to almost seal. Many people remove the throttle body (3 difficult screws and lots of attachments) as a regular cleaning. It's difficult to clean with the throttle body on the car with just the honeycomb screen removed. The black goo blocks the air that is supposed to leak around the edge of the butterfly throttle plate and upsets the ability of the idle air control to bleed enough air to keep proper idle. The horn has a relay in the relay center. On one diagram that may be a different year, it's the 2nd from the passenger side. First is AC compressor, then horn relay. They may be the same part number and you can interchange them to test to see if the horn works with a different relay. That's the first thing to check. |
|
You are here:
Forums
Sedans Buick LeSabre Buick LeSabre Starting/Stalling Problems
New? Join Now!
Forum Tools
Search Forums
Browse by Vehicle
2005 Buick LeSabre
Browse by Board
Browse by Topic
Today's Chats
