Question about 2001 GMC Jimmy

3 Answers

Emissions sensor fuel tank 2001 gmc jimmy

Is there a emissions sensor on the fuel tank on a 2001 gmc jimmy that would or could prevent the computer system from resetting? And if so does the fuel tank need to be dropped to change? Station told this is the reason my computer will not reset after replacing secondary air pump and fuse and driving for over 250 miles. No codes are showing up. The cost to replace this sensor is an additional $250 to the already 500 I have spent. Any help would be greatly appreciated. Thank you

Posted by on

  • jrdbadger May 18, 2009

    thanks for getting back to me. The first and only code I got was a 0410 code for secondary air intake pump. We replaced the pump and the green 30amp fuse behind the battery and checked to make sure all was working which was told it is. Have driven the car almost 200 miles, but system keeps saying not ready at emissions station. Went back to garage found no codes tripped nor was check engine light on. Mechanic then told me about the sensor on top of fuel tank and said he thought that is what might be preventing reset. Vehicle runs great but can't get past emissions test. Any ideas Thanks

  • Dave  C
    Dave C May 11, 2010

    There is a sensor there and you do have to drop the tank, but it's highly unlikely the sensor is the problem, it is simply indicating a problem in the system.. If your engine light has not come back on, you may have already fixed it but just not completed the correct drive cycle yet. Do you know which code or monitor is the problem?



3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,050 Answers

I don't think you have anything wrong, I just don't think you have completed the correct drive cycle yet. Some vehicles must be driven in a very specific way before all the monitors will set. Here is the drive cycle that Gm Recommends:

  1. Cold Start. In order to be classified as a cold start the engine coolant temperature must be below 122°F (50°C) and within 11°F (6°C) of the ambient air temperature at startup.
    Do not leave the key in prior to the cold start or the heated oxygen sensor diagnostic may not run.
  2. Idle. The engine must be run for two and a half minutes with the air conditioner on and rear defroster on. The more electrical load you can apply the better. This will test the O2 heater, Passive Air, Purge "No Flow", Misfire, and - if closed loop is achieved- Fuel Trim.
  3. Accelerate. Turn off the air conditioner and all the other loads and apply half throttle until 55mph (88km/hr) is reached. During this time the Misfire, Fuel Trim, and Purge Flow diagnostics will be performed.
  4. Hold Steady Speed. Hold a steady speed of 55mph (88km/hr) for 3 minutes. During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed.
  5. Decelerate. Let off the accelerator pedal. Do not shift, touch the brake or clutch. It is important to let the vehicle coast along gradually slowing down to 20 mph (32km/hr). During this time the EGR, Purge and Fuel Trim diagnostics will be performed.
  6. Accelerate. Accelerate at 3/4 throttle until 55-60mph (88-96 km/hr). This will perform the same diagnostics as in step 3.
  7. Hold Steady Speed. Hold a steady speed of 55mph (88km/hr) for five minutes. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst.
  8. Decelerate. This will perform the same diagnostics as in step 5. Again, don't press the clutch or brakes or shift gears.

Posted on May 18, 2009

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

Daves944 I have a preblem with getting my 2001 gmc jimmy to pass emissions due to a code saying the vehicle needs to be put threw a drive cycle. The computer I hooked up to the jimmy says the evap pump isnt ready, I tested the evap pump and its working fine. I followed your instructions on the drive cycle about 7 times and it still isnt working. If you have any suggestions please tell me. Thankyou.

Posted on Nov 21, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 232 Answers

Some mechanics are good at replacing things at random. Why did you got to their shop at the first place? Explain it better, and what is happening now? What's your SUV like before and right now? I'm not familiar with your vehicle but I've never heard of such thing.

Posted on May 18, 2009

  • Teddi B May 18, 2009

    Click on this link to get an idea of how demanding a drive cycle can be. Check your vehicles owners manual to find out if there is any information on the drive cycle.


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 2001 GMC Jimmy 4WD. I cannot fill up my

Those hoses are located in the same area as the tank filler. There is a set of hoses that go from the gas cap connection to the tank. You have to lower the tank.

Aug 02, 2013 | 2001 GMC Jimmy

1 Answer

I have a 1995 gmc jimmy. After service light came on, I had codes read. I had a smoke test done, lines were bad. I replaced them, had code cleared and light is back on!! Code is p1441. Any ideas or su

P1441 CHEVROLET Description The Engine Control Module (ECM) has detected vacuum flow to the Fuel Tank Pressure (FTP) sensor during a system sealed condition. Possible causes are a faulty canister purge solenoid or a faulty tank pressure sensor.

Read more:

Jul 24, 2012 | 1995 GMC Jimmy

2 Answers

I have replaced my mass airflow system just replacedvthe fuel pressure regulator and way to many other parts to remember. there is a code that keeps coming up when i check it at autozone. the code is p0453...

Yes a common GM problem. The fuel tank pressure sensor is malfunctioning. You will have to lower the fuel tank down and you will see a black square device like 1" X1" square. It is held in by a rubber fitting you have to pry it out after disconnecting the wire plug. Make sure you put a little wd-40 on the rubber and sensor when you reinstall it or you may damage the gasket causing the system to leak. Then plug in the electrical plug and put the tank back in place. After a drive cycle is completed the code should clear itself or you can clear the code with a scanner and see if it comes back. Now if it does come back check every connection and hose to the vent canister to see iff there is a bad connector, rubbed thru hose or loose connection. But the connections usually will not give low and high readings if bad just low reading. Hope tghat helps you along, Thanks for asking

Nov 21, 2010 | 2001 GMC Jimmy

1 Answer

Fuel goes into 2002 gmc jimmy very slow. could it be fuel sensor? where is this located?

On your Jimmy there is a solenoid that controls fuel vapor emissions.
When filling the vehicle this solenoid called the "canister vent valve" should be open allowing the vapors to reach the carbon canister where these vapors are stored to be burned later.
These solenoids can seize closed and not allow the tank to vent properly.
This solenoid will need to be replaced.
It is mounted above and ahead of the spare tire so the tire will need to be removed to gain access to it.
After you remove the spare it is only a matter of disconnecting a couple of hoses and a wire connector then removing the valve.
There you are, thank you for using FixYa.


Oct 12, 2010 | GMC Jimmy Cars & Trucks

3 Answers

Will a 1995 Chevy Blazer fuel pump work in a 2000 GMC Jimmy? If not, what years are compatible with a 2000 GMC Jimmy?

That depends on the engine and fuel system. For example, throttle body runs around 12 PSI as where fuel injection (Injectors on each cylinder) can run up to 40 PSI. Run the pump that fits your vehicle!

Sep 16, 2009 | 2000 GMC Jimmy

2 Answers

1992 jimmy check engine light came on and is now running very rough

too old to be complicated ,look for split or damaged vacumn pipe on the inlet manifold ,also a thin pipe runs to the ignition coil module and this controls the auto advance unit .This will throw the light on and cause it to run a bit rough

Sep 01, 2009 | 1997 GMC Jimmy

3 Answers

What is evap?

the evap is a canister that is part of the emissions on your vehicle there in the canister any unused fuel is filtered back to the tank and any harmfull particles are stored in it

Apr 17, 2009 | 2001 Dodge Caravan

Not finding what you are looking for?
2001 GMC Jimmy Logo

1,132 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

76846 Answers


Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides