What pins to read codes 91 gmc sonoma obd1 - 1991 GMC Sonoma

Anand Kumar

• 2035 Answers
• Posted on Jun 03, 2008

SOURCE: my 1997 gmc sonoma

This the problem with IAT bad inlet air temp (IAT) sensor.Get it replaced....................

Marvin

• 85242 Answers
• Posted on Sep 29, 2008

SOURCE: starter motor

It's easy, 2 9/16 bolts, remember to disconnect battery and make a note of the wiring on the starter.

Marvin

• 85242 Answers
• Posted on Oct 31, 2008

SOURCE: transmision shifting problem

Reverse is not sycronized, this means the gears have to stop to mess and not grind, two thing cause this, being to quick to slam into reverse after clutch is depressed, a problem with the clutch.

SOURCE: what is the firing order for a 91' 4.3l gmc

Firing order 1-6-5-4-3-2. cylinder's 2-4-6 on right side
cylinder's 1-3-5 on left side.

SOURCE: Need serpentine belt diagram

My sincere apologies for the delayed response.
I am personally going back to answer your unanswered questions.
I have only been a free contributor to this site for the past 4-months.

I do not know if you still need this information, but I am going ahead and answering it anyway. You may want to Print the Diagrams for future use.

CLICK on the following LINK. It has the Belt Diagrams you will need.

If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com!

Again my apologies...
http://www.2carpros.com/car_repair_information/year/1991/make/gmc/model/sonoma/1991_gmc_sonoma_drive_belt_routing_diagram.htm