Question about 1999 GMC Sierra
The crank was turned when the distributer was out ... now the oil pump shaft wont line up with distributer,, how do I get everything to line back up and still get the timing right...???????
You need to bring #1 piston up to the top. Then be sure your rotor on the dist. is pointing to number one in the firing order on the cap and before you put the dist on the oil pump shaft turn the oil pump shaft with a ***** driver so it aligns in the same direction as the rotor and set the dist into the oil pump shaft. Be sure to double check the rotor and be sure it is point to number one in the dist cap if not the engine will back fire and not start.
Posted on Apr 09, 2016
If the Pontiac engine is similar to the small block Chevy, you have, I believe, a hexagonal shaft that runs from the end of the distributor shaft down to the oil pump. This is turned when the distributor shaft is turned by the meshing gears on the camshaft and distributor shaft. I would say that you are probably going to have to re-time the engine. Find TDC, then replace the distributor. It won't matter a whit to the oil pump if the gears are one or two teeth off, but it will matter a great deal if you distributor is not installed so it can be adjusted a few degrees when you get to "fine timing" the engine.
You should be able to download information on how to time the engine (finding TDC, etc.). Failing that, a trip to the library may be in order.
Posted on Apr 15, 2014
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Posted on Jan 02, 2017
SOURCE: My 99 GMC sonoma wont start..
ok... there are a couple of things you can do. i must have miss typed on the cap,rotor . in the back of the motor where the plug wires conect that is the cap that is bolted to the distributor with two torques bits that i believe are t15 in size. there may lie your problem. the posts inside are made of aluminum and they get coroded and dont alow the proper spark. the other commen problem is the exhaust the catalitic converter becomes pluged up. something you can try is remove one of the oxigen sensors and try to start it up if it runs the cat needs replaced. the o2 sensor is a 7/8 nut to remove it. give it a try
Posted on Jan 25, 2009
had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!
Posted on Jun 06, 2009
SOURCE: What is a Vortec engine?
The "spider" injector is the problem. You're right that one of the injectors is stuck open, unfortunately it has to be replaced as an assembly. This a common problem on the Vortec V-6's. When you were checking the fuel pressure, the fuel was passing through the open injector, giving you a low reading. After replacing the injector assembly, be sure to change your oil before you start the engine. I'd be willing to be you have a pint or two of gasoline that has gotten into the crankcase. That injector unit will cost you around $350. It's not too hard to put in, just be careful.
Posted on Feb 20, 2010
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