Last post on May 12, 2013 at 12:38 PM
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Buick LeSabre, Auto Repair, Sedan
#52 of 75 1998 Buick 3800 Motor Check Eng Light
Dec 16, 2008 (1:34 pm)
1998 Buick Lesabre with the 3.8, 77,500 miles. Iím coming up with the code P0300.
Need help! I have a (new to me) 1998 Buick Lesabre with the 3.8, 77,500 miles. Iím coming up with the code P0300 which is multi-cylinder misfire. My mechanic came up with it being # 1 & # 4 cylinders. At this time Iíll mention that the code getís picked up at about 2700 RPM. The engine runs smooth and no noises.
Weíve done some of the obvious; Changed plugs and wires. Change out the coil pack. Ran Sea Foam into vacuum at throttle body. Cleaned and shifted around injectors.
Iím at a lost, any suggestions out there?
#53 of 75 '98 3.8L LeSabre P0107 and P0201 Error Codes
Dec 16, 2008 (4:12 pm)
I have a '98 LeSabre with 110K on it. Currently it's idoling and running rough most of the time. For some reason it randomly decides to run better occasionally. Can't tell any set of occurrences that make it run better - doesn't seem to be temp related.
Check engine light is on. I had it scanned and it came back with these two error codes:
P0107 - Manifold Absolute Pressure [MAP] Sensor Circuit Low Voltage
P0201 - Injector 1 Control Circuit
My thoughts are that either one of the two parts in question is causing all the problems or some other underlying third problem is causing them. Maybe an intake manifold gasket or other vacuum leak?
Any thoughts on what the most likely culprit is?
#54 of 75 1998 Buick Lesabre MAP Sensor Voltage
Feb 06, 2009 (5:20 am)
I have the "Check Engine" light staying on. I had it scanned and it came up with the MAP sensor. I check the voltage from the positive terminal of the harness connector to ground and it reads 11.5 Volts. Should this voltage be closer to 4-6 volts like it says in the 1995 Buick Service Manual or did they increase the voltage on the 1998 model?
If it should be 4-6 volts does anyone have an idea of what might be the problem?
Does it mean that the PCM is bad and needs to be replaced?
Apr 10, 2009 (6:48 am)
i have a 95 buick lasabre. was running fine ecxept wene we drove it it just lost all power a few times. you could hear fuel pump kick in, it rolled over but had to do this several times before it started agian. change fuel filter, plugs, wires, and ecm computer. now its not fireing on 2 cylinders. went to junk yard bought a ignition module still not firing on same 2 cylinders. can you give me suggions on what im not seeing here. oh i had boesch plugs went back and put ac delco in still no change
#56 of 75 Re: 1998 Buick 3800 Motor Check Eng Light [Sizzlerdon]
Apr 26, 2009 (7:35 am)
I have the very same problem. I have changed, TPS, MAP, MAF, EGR, fuel pressure regulator, spark plugs, wires, plenum, lower intake gaskets, PCV, coils. My ignition module was checked at Autozone and turned OK. Compression reads 195, 190, 190, 190, 190, 200. I wonder if I may have a broken valve spring or faulty knock, crank, or cam sensor,
Did you find the problem on yours?
#57 of 75 CODES READ "NOT READY"
Aug 26, 2009 (10:15 am)
I have a 2002 buick lesabre and am tring to get it inspected but for some reason when it is hook up to the obd2 it reads that my o2 senser, o2 sensers htr, Evap, catalyst all say "not ready" why is this. It will not pass inspection enless it can read and I no there is nothing wrong with the vehicle (even the mech said that) please help me before I get a ticket thank you
#58 of 75 '91 Le Sabre 92K miles engine knocking
Mar 23, 2010 (5:22 am)
Bought it 8 months ago with 79000 miles. Now I have 92000 on it. Runs GREAT! One day I was stuck in traffic for about 30 minutes. Car shut off. I let it set for about 8 minutes. Started back up. Drove it about 3 blocks to a spot where I could park it. Let it set for 3 hours. Started it back up and drove it home, which is a 23 minute drive. Replaced the fan motor. Car still runs great. Now there is a knock or some sort of loud sound. When the car starts up, you hear it. It is consistent, not erratic. When I drive with the windows down and the radio off, I hear nothing at all. When I sit in park and press gently on the gas, the sound goes away. Do you have a list of things we may want to check, because i sure hope it is not a thrown rod!
#59 of 75 Re: CODES READ "NOT READY" [foreverjokker]
Aug 08, 2010 (7:26 am)
Has the OBDII drive procedure been followed?
Pull a copy from the web & give it a try FIRST.
Note: this tends to be typical if there has been a battery related situation (dead, replaced, etc..)
#60 of 75 HELP, single women with no car knowledge
Aug 13, 2010 (1:49 pm)
I have a 99 Buick LaSabre that is driving me crazy. A few weeks ago I went out to buy school clothes and my car wouldn't start. After about 4 tries I got it to start but it was jerking and shut off. I finally got it started and took it to a Tires Plus shop. They told me it was the fuel pump, I changed that and they charged me 429. The next day I had the same problem. I called them back and they said bring it back in. I took it in and they kept it for 4 days, they finally called and said that they weren't sure what it was and they would replace the fuel pump under the warranty but I needed to replace the sensor that went along with it. That was another 110. I had the car 2 days and guess what??? THE SAME DANG PROBLEM! At this point im frustrated. I called and again they told me to bring it in.
I took it in for a third time and like a dummy told them that someone said it could be a map sensor. And guess what magically that was the problem. I was charged another 117, now im broke my car is still doing the same thing and I feel I have been wronged. When I try and start it it hesitates most times, sometimes it will try and cut off right after taking off and sometimes it runs fine. I dont know what to do and I was wondering if anyone has had this problem or can give me any suggestions?
#61 of 75 99 LaSaabre engine code
Sep 05, 2010 (6:05 pm)
My ck engine light comes on and my car quite while running. Just dies and I have to restart it.
I checked the code and It does not give one.
What could the problem be that the code light keeps coming on and no code?