GM Diagnostic Flowcharts

[THEswinginD]

My truck is throwing a code 32 and a 43. Does anyone have a copy of those flowcharts that show the diagnostics process for these? Its a 89 350. I used to have a PDF of the whole book but i can't seem to locate it. Any help is appreciated.

 

[JeremyNH]

There's a pinned thread at the top of this forum "88-95 Service Manuals" that has links to what you are looking for.

 

[GoToGuy]

There are 2 books or PDF files. One is GMT-CK1, Service. The other GMT-CK2 Driveability, Emissions and Electrical Diagrams. Book 2 answers your question.

 

[LC2NLS6]

Just because a code calls for a sensor, doesn't mean its bad, it means something else may be wrong causing the symtom that the sensor detects. I'd check for bad wiring, chafed wires, broken grounds, broker/leaking vacuum lines as easy first checks.

 

[THEswinginD]

There's a pinned thread at the top of this forum "88-95 Service Manuals" that has links to what you are looking for.

Thank you kindly.