Nov 18, 2018 · Ok so I have a P0420, P0442, and a P0303 code on my 2003 Buick LeSabre (3800 series 2 engine) And I think ...

Jan 11, 2021 · I could always hear mine from inside the leSabre. AND if the stuff at the rear seems okay, test first for power at the sensor or the pump. I believe your relay/fuse will be under the rear seat if the 03 leSabre I had was set up like your Park Avenue which switched to …

Jan 7, 2023 · 2003 LeSabre Custom - Ran fine then wont start - Fuel pump replaced and still nothing My 2003 LeSabre Custom (140,000 miles) was running fine, no dash lights or driveability issues - got home after 20 mile drive, turned the car off.

Apr 7, 2025 · 2000 Lesabre - Code P0336 AFTER changing faulty Crankshaft sensor.... warewolf95; Mar 14, 2023; Replies 8

Joined Mar 31, 2015 Messages 2,239 Reaction score 897 Points 113 Location Long Island Buick Ownership 2002 LeSabre Limited

Mar 15, 2018 · Hey guys I just acquired my late uncle's 03 lesabre custom. It needed a bit of work but now I got it running good, one thing I noticed though is if it runs over patches of ice or snow it seems to get away on me usually swerves to the right …

Jul 2, 2007 · 03 Lesabre purchase in Sept 2013 with 21500 miles. Currently 35300 miles. Had to do some deferred maintenance when I got it but it runs great. Drove about 80 miles on a toll way with a speed limit of 85, I did 90. No vibration of any kind.

Feb 12, 2014 · hey guys, I have an 03 lesabre that I bought almost two years ago and the fuel gauge quit on me after 1 week of owning it. I finally started doing some trouble shooting recently, and found that my ECU was malfuntioning and causing my fuel gauge to read 0. I went to a scrap yard and picked up...

Mar 16, 2016 · Guys, Like the idea of a bold, different, although muted Gold pinstripe on my '03 Silver Blue Metallic, Limited car. Grey and dark grey leather/vinyl interior. accentuate and make that beautiful beltline POP....catch yur eye and say...."HEY, that's different", but not ugly...

Jan 13, 2017 · I've have a 2002 Lesabre Custom 156k miles, It loses fuel pressure when trying to accelerate. Starts fine , holds pressure after shut off, when driving the pressure drops from 58psi to less than 10 psi, release the gas pedal & the pressure comes back to 58. Replaced the fuel pump assembly, filter & pressure regulator.