First there were some problems with the battery staying charged. Replaced battery. Then the battery cable was corroded, replaced cable. Now they say it's a computer chip issue. I was told there are 2 computers and I'm wondering how to tell which one I need. Also, I'd like to do the repair myself.
What computer chip ? Your vehicle has up ten computers on the vehicle . PCM - engine control module , BCM - body control module , SRS - air bag control module , EBCM - electronic brake control module , The instrument cluster has a microprocessor inside , the heater / A/C control panel is a control module .All the control modules on your vehicle are connected on a serial data communication network .
There are 2 different communication networks on this vehicle: The class 2 network and the GMLAN network. The class 2 serial data circuit is the low speed link, and the GMLAN serial data circuit is the high speed link. Modules that need real time communications are attached to the high speed network. The engine control module (ECM) is the gateway between the networks. The purpose of the gateway is to transfer information from one network to another.
When one of these modules is changed it needs to be programmed , unfortunately the dealer is the only place to have it done at. A GM factory scan tool is needed to do the job ! If it's not done correctly the whole vehicle network will lock up, making the vehicle inoperable .
Class 2 Serial Data Link
The class 2 serial data link allows the following modules to communicate and share data with each other:
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Body control module (BCM)
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Digital radio receiver
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Electronic brake control module (EBCM)
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Engine Control Module (ECM) (LY7)
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Instrument panel cluster (IPC)
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HVAC module
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Powertrain control module (PCM) (L26)
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Radio
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Inflatable restraint sensing and diagnostic module (SDM)
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Vehicle control interface module (VCIM)
The GMLAN serial data communications circuit used on this vehicle is in a linear topology. The following modules are connected to the link, in order from DLC to the end of the linear configuration:
The following modules communicate on the GMLAN serial data circuit:
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The transmission control module (TCM), (LY7) 3.6-L
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The engine control module (ECM), (LY7) 3.6-L
I very strongly suggest you don't try to fix this problem !
SOURCE: buick lesabre nightmare 2
SOURCE: how to replace a coolant level sensor, 2000 buick century
The coolant level sensor is located on the radiator. If you are looking at the engine from the front of the car it will be on the left side. There will some kind of clip holding it in the radiator. Removed the clip and pull the sensor out. You will lose coolant so try to swap it out quick or drain some of the coolant out. Once new sensor is installed, install clip to keep the sensor in place and reconnect the wires to the sensor. Crank the engine and make sure the coolant level is full. This should correct your problem.
SOURCE: 94 buick regal grand sport
sounds like the same thing that was wrong with the 94 GS i recently bought. found the crankshaft postion sensor to be bad. it controls your electronic spark timing which would allow it to turn over with out starting.
also does your stall when you are stopped and at idle or while at driving speed or both? mine would stall at idle and driving speeds. Changed that sensor and have not had any more issues with stalling. sensor should cost around $30-$40 dollars at your local autozone, takes about 2 hours to change just need to pull the harmonic balancer pulley (make sure to use the proper tool or you will bend the pulley) and the sensor is behind the pulley. you will gain easier access to doing the maintenace buy removing the passenger front tire and the little splash gaurd directly behind the tire held on by 3 quick release fasteners. hope this helps you out.
SOURCE: how do I replace my fuel level sensor on a 2000
Access via trunk, remove carpet and find inspection cover, remove to access fuel level sending unit which is attached to the fuel pump.
Hello
The engine
and automatic transmission in this vehicles drive train
are fully electronically controlled by a computer called the PCM
(Power Train Control Module). Whenever a problem like this occurs the
computer stores a record of the problem (there are of course some
exceptions to this, like the fuel pump, engine coolant temperature
sensor and MAF sensor for instance) in the form of a fault code in
its memory, to read these fault codes you must have the systems
memory scanned with a special tool. Once the fault code(s) are read
you then must perform the appropriate diagnostic testing to find and
resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A
TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR
HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
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Usually answered in minutes!
Martha this is a pretty broad question.
Have a reputable shop or the dealer reflash your PCM, because some modules can drift.
If your Delphi made Dash is dark seehttps://www.youtube.com/watch?v=rtRINop3...
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