20 Most Recent 2000 GMC Jimmy - Page 6 Questions & Answers

charging voltage to battery should be;
13.6 to 14.2 - the lower the voltage the higher the charging amps i.e:
13,6 = 55 amps
14.2 1209 amps
example only.

Use a C clamp type bushing tool to press out the old bushing and install the new one. Alternately, you can use a pneumatic chisel to dent the bushing from the back being very careful to not nick the control arm or the shaft. A little penetrating oil would help. Once the bushing loosens the pneumatic chisel can pop it out. Mark the shaft with a piece of tape to get it back the same way. Once the first bushing is out, the shaft should slide out through the hole making it easy to remove the second bushing. To install a new one make sure that the A frame won't bend when installing the bushing. Don't forget to put the shaft back before installing the second bushing. Don't tighten the nuts on the ends of the shaft until the A frame is installed and lower A Frame supported with a jack approximating the normal ride height. Fixing the bushing rotation at normal ride height will make them last longer.

I'm guessing but this sounds like air problems. do you have a new air filter? The O2 sensor may be off but not technically bad yet. I'm pretty much stuck on something restricting the air flow.

I think you must replace the entire hub assembly. You need a shop manual to do this correctly.

Temporary fix is to cut out bad section of line and use "oil cooler" type hose to make a splice using hose clamps.

Your brakes are probably worn down, and need new pads. Check the thickness of the rotors.

Check the wiring harness plugs going into the stereo. Maybe one of them might be loose.

Some might have an ses p0446, evap emissions vent circuit low. If you take it to the dealer they want 300-400.00 to fix the problem. GM has a service bulletin on this condition and have the updated part for 180.00, thats suppose to eliminate this issue.

Basically the problem is, the evap purge vent valve gets clogged with dirt, especially if the truck is used in dirty conditions. Well I figured there had to be a cheaper way to cure this problem.

Here it is:
1) find the location of the vent valve; its under the truck, locate the charcoal canister on the front of the gas tank and trace the vent line to the vent valve.
2) Take the bracket loose with a 5/8 wrench.
3) Spin the valve around so the side with the hole is facing you.
4) Take an air compressor and blow the vent valve out.
5) reinstall and clear the code and it's fixed.

Now I know the updated part from gm is supposed to keep the valve from clogging ever again, but why spend the money when all you have to do is blow out the vent valve every 50k-100kmi and save your $$$!

Subject: DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Service Engine Soon (SES) Lamp Illuminated (Replace Hose/Evaporative Emission (EVAP) Canister Vent Asm) #02-06-04-037A - (02/02/2005)
Models:
- 1999-2003 Chevrolet Silverado Models
- 1999-2003 GMC Sierra Models
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This bulletin is being revised to add model years. Please discard Corporate Bulletin Number 02-06-04-037 (Section 06 -- Engine/Propulsion System).
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Condition
Some customers whose vehicles are operated in dusty type environments, such as farming or mining off-road type applications, may comment about the illumination of the instrument panel SES light, with a DTC of P0446 (Restricted/Blocked EVAP Vent Path) being set.

Cause
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Part Number 15086429 Hose Asm-Evap Emis Cnstr Vent


Removal & Installation
Purge Solenoid Valve-2.2L (L61) Engine

1. Disconnect the evaporative emission (EVAP) canister purge valve harness connector.
2. Disconnect the vacuum pipe from the EVAP canister purge valve.
3. Disconnect the purge pipe from the EVAP canister purge valve.
4. Remove the EVAP canister purge valve and bracket.
5. Remove the EVAP canister purge valve from the purge bracket.
6. Inspect for carbon release in the EVAP canister purge valve ports.
   

To install:

1. Install the EVAP canister purge valve on to the purge bracket.
2. Install the EVAP canister purge valve and bracket. Tighten the purge bracket nut to 71 inch lbs. (8 Nm).
3. Connect the purge pipe to the EVAP canister purge valve.
4. Connect the vacuum pipe to the EVAP canister purge valve.
5. Connect the EVAP canister purge valve harness connector.
6. Remove the air cleaner outlet resonator.
7. Disconnect the EVAP canister purge valve harness connector.
8. Disconnect the engine purge pipe from the EVAP canister purge valve.
9. Disconnect the engine vacuum pipe from the EVAP canister purge valve.
10. Remove the EVAP canister purge valve mounting bracket attaching bolt.
11. Remove the EVAP canister purge valve along with the mounting bracket.
12. Installation is the reverse of the removal procedure. Tighten the bracket bolts to 71 inch lbs. (8 Nm).

Purge Solenoid Valve-2.4L Engines

1. Remove the front purge pipe from the evaporative emission (EVAP) canister purge valve.
2. Remove the rear purge pipe from the EVAP canister purge valve.
   NOTE The EVAP canister may have released carbon particles, which caused this part to fail, and may cause damage to other components. Check the EVAP canister for loose carbon before returning the vehicle to service.
   
3. Disconnect the EVAP canister purge valve electrical connector.
4. Insert a screwdriver between the EVAP canister purge valve and the mounting bracket in order to release the lock tab.
5. Remove the EVAP canister purge valve mounting bracket attaching nut, if replacing the bracket.
6. Remove the bracket.
   

To install:

1. Install the mounting bracket and the attaching nut for the EVAP canister purge valve. Tighten the nut to 71 inch lbs. (8 Nm).
2. Slide the EVAP canister purge valve onto the mounting bracket. Make sure the lock tab locks the valve in place.
3. Connect the EVAP canister purge valve electrical connector.
4. Connect the rear purge pipe to the EVAP canister purge valve.
5. Connect the front purge pipe to the EVAP canister purge valve.

Vent Solenoid Valve-2.2L & 2.4L Engines

1. Raise the vehicle
2. Loosen the EVAP canister vent valve hose clamp and slide the clamp down the hose away from the EVAP vent valve hose connection.
3. Remove the hose from the EVAP canister vent valve.
4. Remove the EVAP canister vent valve by placing a pry bar between the valve and mounting surface, and moving the valve forward.
5. Remove the clip from the EVAP canister vent valve harness connector
6. Disconnect the EVAP canister vent valve harness connector.
   

To install:

1. Connect the EVAP canister vent valve harness connector
2. Install the clip into the EVAP canister vent valve harness connector.
3. Install the EVAP canister vent valve by pushing the mounts into the original holes.
4. Lubricate the hose end with lubricant.
5. Install the hose to the EVAP canister vent valve.
6. Slide the EVAP canister vent valve hose clamp down on to the hose connection at the EVAP canister vent valve.
7. Lower the vehicle.

Hope this help (remember commetn and rated this).

Have you noticed if all your lights come. Sometimes if your airbag bulb it burnt it will chime at you.

You need to unplug the pump motor on the reservoir tank. A lot of times there is a buildup of corrosion. Please clean connection and verify that you do have 12+ volts at the pump. Someone will have to push mist button to see the voltage reading. A thumbs up would be greatly appreciated if this answer is helpful to you.

could be crank or cam sensor.

is it going into park?

check fuel pressure to see if filter is dirty or pump weak.

check fuel pressure

The trouble shooting section in the Chilton/Haynes repair manual that covers your truck will lead you to most likely through least likely reasons for this stumble while running. I just checked my own repair manual (1992 GMC Sonoma). Most likely problem is in HEI system. I would suggest a full tune-up if one hasn't been done in memory, if at all. (My father-in-law bought a couple used cars that had misfire codes. Pulled the plugs and found they had NEVER been replaced in over 100,000 miles.) Replace plugs, wires, distributor cap etc. Be sure the plugs are gapped correctly, etc. Best of luck with your GMC. The bad news about these newer GMCs. I had to get a special wobble-socket and take the front tires off of my truck to change the front 2 spark plugs. You have to go through this little hatch type opening in the inner fender well to access them. What a bummer.

Surely you can see the fuel on the outside of the fuel tank or a rusted fuel tube under it You should be able to find that issue in 10 minutes IF you get under it That is only 2 gallons added at a time Wouldn't you think the fuel tank is the issue,if it leaks without the motor running Now you also know we can not guess from here

First thing I would do is to put an OBDII reader on it and see if any codes are being stored in the ECU. Just because the engine light isn't on, doesn't mean it's not throwing out codes. Some other things to take into account is when the last tune up was done on the vehicle. If the plugs are original they may be ready to be changed, Your igniters (Coil Packs) may be throwing weak spark. If you have over 100K on the truck, you're fuel pump may be getting weak or at the very least the fuel filter may be getting clogged. Just some things to think about, but definitely pull the codes, if there are any it will lead you in the right direction of either an electrical problem or a fuel problem.

These switches are prone to internal failure. Be sure the switch is adjusted properly

Is your antifreeze leaking on the ground in the front of the motor ? There are many different things to do to find the right answer to this question. 1 : pull the motor dipstick. If oil mixes with the water - antifreeze the dipstick will look milky. If it does not. And looks good. Then 2: with water in the radiator don't put antifreeze in it keeps wasting $$ til leak is found. 3 : start motor look from under the front of the water pump with a flashlight if you have a dripping from a weep hole in the water pump bottom behind the fan. If you can't find a leak shut off the motor. Feel the bottom of the water pump if there is a presence of water you'll need a new one. If not .4:if the motor is over heating or has been blowing antifreeze out of the overflow hose along the side of the radiator. If so the thermostat may be stuck. Much cheaper repair.

Later model GMC's don't have a vacuum modulator. All electronic.