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Okay first of all there is a few things you need to know about these type of engines. You can not adjust the timing by the disturber. And second of all you'll need to look at the cap closely because being an old school mechanic such as myself you are used to pointing the rotor at the number one cylinder and that will not work on these. Okay, First you will want to pull the number one cylinder plug (that will be on the driver side front of your engine) Have someone bump the starter while you place a finger over the spark plug hole until it blows your finger off the hole. If possible you can now look at the crank and get the mark to line up to zero. You are now in top dead center of the compression stroke. A cheat I used because they don't seem to make a tool for it is that i used an old disturber i drove the pin holding the gear on at the bottom and took the gear off. Now you can use that "tool" to align the oil pump with the number one plug. You will notice on the cap that it has a mark like point build into it. Use the old tool to align the rotor with that point. That should get you back on the road.
Wiki User
∙ 11y ago
Wiki User
∙ 16y ago1996 and later 4.3 liter Vortec's timing can not be adjusted. The timing is controlled by the computer
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When does a GMC Jimmy need the timing belt replaced?
no timing belt on a GMC Jimmy
How can i find timing marks 1998 vortec eng?
I could be wrong, but I have a Vortec 350 in a GMC truck and I think the computer handles the ignition timing. If your talking about valve timing I would assume there are marks on the timing gears like the days of old, but I haven't torn the timing cover off of mine yet.
What kind of gas does a gmc jimmy take?
unleaded, 89 or higher for a vortec.
Where is the oil pump on a 1998 GMC Jimmy?
where is the oil pump on a 1998 gmc jimmy in the oil pan.
Where are the timing marks on a Chevy 5.7 vortec?
http://www.truckforum.org/forums/gmc-truck-forum/10885-97-5-7l-vortec-timing-reset-question.html
Does the 1999 GMC jimmy have a timing belt or timing chain?
Chain
What type of motor came in 1997 GMC Jimmy?
4.3 liter V6 vortec
Where do you find vacuum hose diagrams for a 1993 GMC Jimmy vortec V6 4.3?
Thank You
How do you set the timing on a 1990 GMC Jimmy?
Click the link.
What is the firing order for a 1998 GMC Yukon 350 Vortec?
I believe it is 18436572 1.8.4.3.6.5.7.2
If your 1997 GMC 5.7L Vortec has a misfire at idle but not while under throttle whats the problem?
If your 1997 GMC 5.7L Vortec has a misfire at an idle but not while under throttle, the problem is likely the timing. This can be adjusted.
Where do you find vacuum hose diagram for 1998 GMC Jimmy Vortec V6 4.3 liter engine?
vacuum hose from window washer to where it runs from small hoses running under the window
