2000 GMC Sonoma Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2000 GMC Sonoma

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2000 GMC Sonoma Problems

Check Engine Light With Code P1870

Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.

Erratic Fuel Gauge Operation

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

Check Engine Light Due to Gas Cap Issue

A Loose or worn gas cap may cause Check Engine Light to illuminate.

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2000 GMC Sonoma Questions

How do you reset the brain on my 2000 GMC Sonoma (1 answer)

How do you reset the brain on a 2000 GMC Sonoma

Why my truck runs rough and dies. (1 answer)

My truck has a 4.3 engine ,when I start it and let it run for about a minute then put it in drive ,it runs fine but, if you start it and immediately put it in drive it will try to die at cold or normal operating temperature. Then when you are driving it, it runs and drives fine until you start pu...

For about 3 years my truck will start fine but if you immediately put it in drive it will start running rough . (1 answer)

2000 GMC Sonoma extended cab Pickup when I start it and let it run it run for about 1 minute then put it into drive it will run just fine but when i start it and put it into drive immediately it will die.

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2000 GMC Sonoma Recalls

GM Recalls 2000 Chevrolet S10, GMC Sonoma, Olds Bravada Due to Incorrect Payload Rating

The payload as listed on the vehicle certification label exceeds the actual limitations of the vehicle.  If the weight limitations of the vehicle are exceeded, the vehicle will not operate as designed, and may cause a safety issue. Owners will be sent a revised vehicle certification label that is accurate.

GM Recalls Certain Trucks Due to Antilock Brake System Pump Motor Issues

The Antilock brake system pump motor may have an insufficient spring clip installed, which may cause an internal bearing retention issue. This could affect pump motor operation, and may cause brake pressure differentiation issues between the front and rear brakes. Dealers will replace the brake pressure module valve assembly.

GM Recalls 2000 S-Series Trucks Due to Brake Pipe Union Sealing Issues and Leakage

The brake pipe union fittings that feed the various brake system components may leak and cause a loss of braking function. Dealers will inspect the brake pipe union for signs of leaking brake fluid and replace the union if necessary.

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2000 GMC Sonoma Reviews

I HAVE A 2000 GMC SONOMA. I'VE REPLACED JUST ABOUT EVERYTHING ON IT. THIS IS MY SECOND GMC TRUCK BUT I WILL NEVER OWN A THIRD ONE. NOTHING BUT TROUBLE FROM THE BEGINNING. TOTAL COST OF REPAIRS AROUND $15,000. I BOUGHT THE TRUCK NEW FOR $17,000. NEXT PROBLEM THE TRUCK GOES TO JUNK YARD.
I have the same problem, that was addressed some years ago, Without an answer that Question is "I have gas going into my exhaust pipe, I have changed spark plugs and wires, Fuel injector, coil pack, pressure tested cylinder number 4, It still has gas going into the exhaust pipe,on cylinder number 4, Someone told me it may be my fuel regulator any other suggestions , I WANT TO HEAR THEM,HAS AN...
brought truck into garage for possable work on the ABS and Check engine light. they said it was the abs computer and the tuck computer were not working property. drove truck home aprox. 5 miles. truck sat in driveway 1 month. drove it 5 miles up the road starting loosing power and check engine light started blinking. turned around and drove home, picked up plugs and wires figuring they were bad...

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