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Buick LeSabre Engine help

64 messages,  Last post on Dec 07, 2009 at 10:16 AM

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#55 of 64 Re: 1993 Sputtering LeSabre [93buicklesabre] by imidazol97 Oct 01, 2009 (6:43 pm)
Replying to: 93buicklesabre (Oct 01, 2009 6:23 pm) Does it sputter if you shift into neutral while slowing down? Does it stall?   EGR valve is one possibility. It can be removed and cleaned with carb cleaner. Check the tube for deposits under the EGR.
#56 of 64 Re: 1995 Buick Le Sabre AC Bypass Serpentine Belts? [polara60] by cautious_hero Oct 06, 2009 (12:00 pm)
Replying to: polara60 (Sep 07, 2009 1:11 pm) This is exactly what I have done. I used a 71" belt and it works like a charm. Now the neighborhood kids don't run in fear when I turn on my road. It's (71 - 6 ) because the pulley's have 6 grooves. You'll have to use a metric 15 wrench with a pipe for leverage on the tension pulley. I used part of a floor jack - you know the part I mean ? It fit right over one edge of the open end of the shorty I used. You'll need a short screwdriver to pry the belt around the tension pulley I would suggest making the 71 work instead of going bigger if it doesn't go right on, because these belts do stretch. And you will have to pry it on. Just make sure you pry it on the tension pulley so you are against the back side of the belt and not on the inside ridges.  Good Luck.
#57 of 64 Re: 1995 Buick Le Sabre AC Bypass Serpentine Belts? [polara60] by cautious_hero Oct 06, 2009 (12:05 pm)
Replying to: polara60 (Sep 07, 2009 1:11 pm) I might add that this is an accessory belt and has nothing to do with the timing. I would have hated to go the procedure of removing the compressor. This is just a work car for me. Although, it IS a very NICE car.....
#58 of 64 RE: Engine Sputters at Idle by 93buicklesabre Oct 08, 2009 (4:47 pm)
Well I have not checked that yet. But I need to know where I can find a engine diagram for that motor to find the EGR valve. That would be great if you all could find me that information. Also just curiosity my check engine light comes on now from time to time and it stays on for about ten minutes then it goes off. It does that every 3 to 4 days. I know the transmission is still strong in it because when I stomp on it it doesnt slip at all. So I am just trying to figure out what is going on with those couple things. Thanks alot guys. Replies to this message: imidazol97 (Oct 08, 2009 6:53 pm) 93buicklesabre (Oct 09, 2009 9:27 am) imidazol97 (Oct 09, 2009 4:06 pm)
#59 of 64 RE: Engine Sputters at Idle [93buicklesabre] by imidazol97 Oct 08, 2009 (6:53 pm)
Replying to: 93buicklesabre (Oct 08, 2009 4:47 pm) Pull off the vacuum tube on the Fuel Pressure Regulator on the front of the motor. If there's liquid gasoline in the tube or you get a strong smell of gasoline, it may be leaking gasoline from the fuel line into the intake system.   The FPR is the light aluminum colored thing on the fuel rail in right in the middle of picture going across and about 2/3 of the way to the right.     EGR valve picture. On exhaust pipe on back of engine close to throttle body end. Has tube going to air intake.   Replies to this message: 93buicklesabre (Oct 09, 2009 9:27 am) imidazol97 (Oct 09, 2009 4:06 pm)
#60 of 64 RE: Engine Sputters at Idle [imidazol97] by 93buicklesabre Oct 09, 2009 (9:27 am)
Replying to: imidazol97 (Oct 08, 2009 6:53 pm) Ok so how do I fix the problem with the fuel leaking into the intake system? I am trying to figure it out so I can fix the problem because I love the car and I dont want to get rid of it. Let me know... Thanks Replies to this message: imidazol97 (Oct 09, 2009 4:06 pm)
#61 of 64 RE: Engine Sputters at Idle [93buicklesabre] by imidazol97 Oct 09, 2009 (4:06 pm)
Replying to: 93buicklesabre (Oct 09, 2009 9:27 am) Do you have liquid fuel in the line from the FPR?
#62 of 64 Fuel problem? by khh3 Nov 23, 2009 (3:22 pm)
I have a 1993 buick lesabre, here's my problem, first of all let me add this, new fuel filter was installed, fuel pressure was checked, and was in parameters. So my problem is, the car starts fine, idles fine. On the highway and on city streets, when stepping of the gas, the car boggs down step down further, and more so, let up slightly and its ok. I was treating the fuel with star tron, and used recommended amounts and it cleared up for sometime, now I am back to the bogging down when stepping on the gas, and the fuel treatment no longer works. Have any Ideas? please help!
#63 of 64 1995 Lasabre Custom 89000 miles by datencio Dec 07, 2009 (6:38 am)
Just got this Lasabre about a week ago. 1995, 89,000 miles. It has the 3.8 V6. It seems to have been well maintained. Incredible cosmetic condition!   It starts on 1st turn of the key and runs very smooth.   I do hear some engine knocking, sounds like it is coming from somewhere on the top end passenger side. The knocking starts when I put it in drive.   I also have an oil leak from somewhere, it is also on the passenger side. I got underneath and cleaned around the oil pan and oil filter but the leak is coming from somewhere above. I didn't see any leakage around the head covers.   I am having a hard time locating where the oil is coming from. Any ideas on how to narrow it down?   Thanks in advance   Doug Replies to this message: bob252 (Dec 07, 2009 10:16 am)
#64 of 64 Re: 1995 Lasabre Custom 89000 miles [datencio] by bob252 Dec 07, 2009 (10:16 am)
Replying to: datencio (Dec 07, 2009 6:38 am) Hi Doug, I just sent my 95 to a new home with 250000 mi on it, For your oil leak, LOOK just above the filter (oil) and you will see the oil pressure sending unit, it costs about $8...and from what you described I'll bet that is it. A very easy job, take off the right front wheel and remove the rubber splash guard (it has little plastic pins that look like a nail head,use diagonal cutters) DIKES gently go under the nail head and pry upward to remove them. They will come out in two pieces, then start the engine and check for the leakwhere the wire connects. Check Autozone for the best price if one is near you, as for the knock well that is pretty much impossible to guage without hearing it. you can e me at rsa2500hotmail if you need more info. I can only hope that it never ran without any oil in it.But if it only knocks when put in gear then it probably is not the engine..Hope this helps Bob.

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