I have a 2000 GMC Sierra 4.3 liter V6 Vortec and im having troubles. here is the problem the truck will start but you can shut it off and it wont come back on it turns over and sputters and will not start. what i have been doing is the battery will end up dying and we hook a battery charger to it and get power back to it and after a few cranks it will start back up. if you have any suggestions please let me know. the truck also has 320,000 miles on it but when it runs it runs with a slight hesitation

pat murray

• 293 Answers
• Posted on Oct 17, 2008

SOURCE: 1998 GMC Jimmy Vortec V6 4.3L 4WD

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800bfc68
hope this helps

SOURCE: 94 GMC truck diesel starts,runs and then dies and will not start

I have the same problem and have trouble codes 35 and 36. I found out that there is a computer module that needs replaced as it sits low in a valley and gets hot and seperates. I am reseaching about the a/m fix that installs the new module away from heat.

SOURCE: 1997 gmc k1500 runs really rich

Hi there,first of all you must synch the cam/crank sensors. To do this put the engine on top dead center remove the distributor cap and look very closely at the dist housing there will be a 6 mark and an 8 mark loosen distributor and rotate untill the rotor points directly at the 8. The marks are small so get a light and look closely.Clear codes and restart. Is vehicle still running rich?

Dennis Mulford

• 1055 Answers
• Posted on Apr 19, 2009

SOURCE: Truck will not run starts to run then sputters out

i just had this problem i changed everything then it turned out too be the fuel pressure regulator !!!!

SOURCE: where is the oil sending unit on a 2001 4.3 liter

ENGINE OIL PRESSURE SENSOR OR SWITCH REPLACEMENT

TOOLS REQUIRED
J 41712 Oil Pressure Switch Socket

REMOVAL PROCEDURE

IMPORTANT: Clean the area around the sensor and Distributor before removal. Do not allow debris to enter the engine.

1. Remove the distributor.
2. Disconnect the engine oil pressure sensor electrical connector.
3. Remove the engine oil pressure sensor using the J 41712. IMPORTANT: Note the alignment of the engine oil pressure sensor fitting prior to removal.

1. Remove the engine oil pressure sensor fitting, if necessary.

1. Apply sealant GM P/N 12346004 or equivalent to the threads of the fitting and/or the engine oil pressure sensor. NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the engine oil pressure sensor fitting, if removed. Tighten Tighten the engine oil pressure sensor fitting to 15 N.m (11 lb ft) .

1. Install the engine oil pressure sensor. Tighten Using the J 41712, tighten the engine oil pressure sensor to 30 N.m (22 lb ft) .
2. Connect the engine oil pressure sensor electrical connector.
3. Install the distributor.
4. Check and adjust engine oil level.