Question about 2000 GMC Sonoma Extended Cab

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P0300 code problems

My sonoma keeps getting the p0300 code at freeway speeds and anytime the engine stays above 2000 rpm for any extended period of time. ive changed the pcv valve, cleaned out the MAF sensor, checked my vacuum lines, and have even tried fuel injector cleaner. the light comes on for a while, flashes a few times, goes out, then the next time it starts flashing it will stay on until i return to city speeds for a day or two. the year model i have does not have an egr valve from what ive heard and yes ive searched all over for it. its a 2000 model. Ive heard so many things about how to solve this problem but idk what to do. engine doesnt seem to misfire honestly. doesnt seem to run rough when the light is on. the fact that its coming on though is annoying and id like to get to the bottom of this problem as soon as i can.

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I had a similar problem, it turned out to be the fuel filter. Since then I also run Sea Foam Engine Treatment every 2nd or 3rd oil change, half in a full tank of gas and half in the crank case. The only time I've had the problem since is when I've forgotten to add the Sea Foam when I should.

Posted on Jul 21, 2010

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Posted on Jan 02, 2017

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My 2004 mazda b 2300 (105,000 miles) "bucks" when i shift up (usually at about 2000 rpm or less)


The engine may misfire and/or buck while driving at freeway speeds with no fault code stored in the powertrain control module (PCM). This can be caused by an intermittent fault with the camshaft synchronizer assembly. This condition can be diagnosed by monitoring knock sensor data as per Ford service bulletin #05-22-12. Replacement of the synchronizer assembly will be required to correct this concern.
https://repairpal.com/engine-buckmisfire-at-freeway-speeds-934

I hope this helps

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How to fix p1270 on2000 mustung


Code p1270 Indicates the vehicle has been operated in a manner which caused the engine or vehicle to exceed a calibration limit. The engine RPM and vehicle speed are continuously monitored and evaluated by the PCM. The best way to stop this code from coming back is to make sure the vehicle is not driving at a high rate of speed... or the engine is not at a high rpm for a extended period of time.

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Eng loosed power


need truck scanned some auto stores such as auto zone / advanced auto scan for free check ur local area the trouble code will give u start point towards fixing problem

Feb 01, 2010 | 2000 GMC Sonoma Extended Cab

2 Answers

I have a 2001 gmc sonoma with obd error codes p0410 p0300 p0100


P0410 Secondary Air System PerformancePossible Causes Setting Conditions AIR solenoid Ignition circuit is open (check the U/H IGN fuse) AIR pump has failed (inspect air pump for water) AIR system check valves and/or pipes are damaged or leaking AIR system hoses or lines are damaged, pinched or kinked Base engine problem (e.g., excessive exhaust back pressure) PCM has failed P0300 Multiple Cylinder Misfire DetectedPossible Causes Setting Conditions Base engine mechanical fault that affects one or more cylinders EVAP system problem or the EVAP canister is fuel saturated EGR valve is stuck open or PCV system has a vacuum leak Fuel delivery component fault that affects two or more cylinders Ignition system fault (a coil) that affects more than one cylinder

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1 Answer

2000 Sonoma hesitation at between 1500 and 2000 RPM


You may have got a slug of water in the gas, try some additive and see if it will clear up. If it dosent best do a fuel pressure test, i don't know why but pumps have been known to go out just after a fill up.

Mar 20, 2009 | 2000 GMC Sonoma Extended Cab

1 Answer

High freeway rpm's


Disconnect the positive lead to the battery wait about 30 seconds and reconnect. This should reset the error light. Now go where you can floor it and go through the gears a couple times. This will establish a new acceleration curve. Now go on the freeway and see what happens. If it's a real problem the light will come back on. If so take it to a shop that has a computer to plug into your vehicle - this will be able to tell anything that's wrong.

Mar 18, 2009 | 2000 Kia Sportage

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Rav4 99 P0303 ( random misfire) and P0300 and P0302


Had the same problem on my brothers Rav4. We changed the Plug wires and the problem is corrected. He had changed the plugs a couple of months ago. We had the code read at Advance Auto, it came up P0300 Random misfire. His old wires looked fine also.

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Engine high rev at stop and slowly goes to idle speed.


I've got Hyundai Lantra 1.6 year 2000. It's take time to start when it's hot. When I start my car it revs at about 2k-3k rpm. It also does it when I come to a stop. When I come to a stop it will stay at a higher rpm than that of idle speed. It drives ok when on freeway but uses more petrol. I have changed the water & petrol pump but no luck

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GM service engine code P1870/2000 GMC Sonoma 2.2 cylinder


you jave a biggie here.
here is some info
CIRCUIT DESCRIPTION
The Powertrain Control Module (PCM) monitors the difference between engine speed and transmission output speed. In D3 drive range with the TCC engaged, the engine speed should closely match the transmission output speed. In D4 drive range, with the TCC engaged, the TCC slip speed should be -20 to +60 RPM .

When the PCM detects excessive TCC slip when the TCC should be engaged, then DTC P1870 sets. DTC P1870 is a type B DTC.

CONDITIONS FOR RUNNING THE DTC
  • No TP sensor DTCs P0122 or P0123.
  • No VSS assembly DTCs P0502 or P0503.
  • No TCC solenoid valve DTC P0740.
  • No 1-2 SS valve DTC P0753.
  • No 2-3 SS valve DTC P0758.
  • No 3-2 SS valve assembly DTC P0785.
  • No TCC PWM solenoid valve DTC P1860.
  • The engine is not in fuel cutoff.
  • The engine torque is 40-400 lb ft .
  • The TP angle is 12-50% .
  • The vehicle speed is 56-112 km/h (35-70 mph ).
  • The speed ratio is 0.64-0.95 (the speed ratio is the engine speed divided by the transmission output speed).
  • The engine speed is 1500-3500 RPM .
  • The gear range is D4.
  • The commanded gear is not 1st gear
  • The TFT is between 20-130°C (68-266°F) .
  • The shift solenoid performance diagnostic counters are zero.

May 16, 2008 | 2000 GMC Sonoma Extended Cab

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