Question about 1992 Buick LeSabre
Removed o2 sensor thinking exhaust was restricted ran engine with o2 sensor removed, no change. Disconnected electrical connection at mass air flow sensor. Was able to keep running on cold start but just barely. Once engine would idle on its own. Reconnected mass air flow sensor engine died. Disconnected engine would run although poorly. Have replaced mass air flow sensor. Is it possible iacvalve could be defective? Have replaced iac valve twice.Beleive I have a lean condition because either or starting fluid in snorkle makes eng run normal. Have done propane leak test around upper and lower intake. Noticed strange condition. Temp gauge will fluctuate from left to right when cranking & amp gauge goes from 14 to 8 while cranking. Removed throttle body and all sensorscleaned thourghaly replaced t/body gskt . Scanned computer with snap on brick, no codes. Mass air flow, when running showed 5 at idle block learn & integrater 128. Have found prom update. Prom # 9554. very expensive, could this be my problem?
Posted on Aug 01, 2008
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 01, 2017 | 2002 Buick LeSabre
Sep 21, 2015 | 2001 Buick LeSabre
Jul 23, 2014 | Chevrolet Chevy Cars & Trucks
Nov 01, 2011 | 2005 Dodge Neon
Jul 05, 2011 | Buick LeSabre Cars & Trucks
Fig. HO2S1 location "2" on 3.8L
Fig. HO2S2 location "4" on 3.8L
Hope this helps (remember to rate and comment this answer).
Jun 07, 2011 | 2000 Buick LeSabre
May 17, 2010 | 1994 Buick LeSabre
Mar 20, 2010 | 1993 Buick LeSabre
Sep 26, 2009 | 1992 Buick LeSabre
Apr 12, 2009 | 1992 Buick LeSabre
Sep 30, 2014 | 1992 Buick LeSabre
632 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: