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I need the torque specifications for the heads on a 93 gmc jimmy 4.3 vortec

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Cylinder head bolts 65 ft.-lbs.

Posted on Aug 02, 2010

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1 Answer

I have 1999 GMC Jimmy. It had the 4.3 Vortec in it, would I be able to it out with 4.3 Vortec in a 1994 GMC Jimmy.


The engine will match up but the sensor plugs may not so you may have to swap the sensors between the engines.

Sep 25, 2016 | 1999 GMC Jimmy

2 Answers

Can't find the torque head bolt pattern for a 1996 gmc sierra 5.7 vortex


The "pattern" for ANY cylinder head is pretty much the same...start with the bolts in the center of the head and work your way out to both ends.
Torquing the cylinder head on your 5.7L Vortec engine to manufacturer specifications requires the use of a "torque angle" gauge, as well as a traditional torque meter.

The torque specifications are as follows:

> Step 1: All bolts: 22 Ft Lbs (30 Nm.)
> Step 2: Short bolts: Additional 55 degrees; Medium bolts: Additional 65 degrees; Long bolts: Additional 75 degrees

May 20, 2012 | GMC Sierra 1500 Cars & Trucks

1 Answer

Need firing order for 1995 4wd gmc jimmy v6 4.3 vortec


Hi there. I just did a tune up on my 95 Jimmy with the same motor. The firing order is 1-6-5-4-3-2 and the distributor rotation is clockwise. I hope this helps.

Nov 06, 2010 | 1995 GMC Jimmy

2 Answers

Fireing order for a 4.3 vortec/92 jimmy


http://0.tqn.com/d/autorepair/1/0/g/_/41894088.gif
Here is a picture of the 4.3L vortecs firing order. Thanks for asking!

Jun 29, 2010 | 1992 GMC Jimmy

1 Answer

Fuel prblem


the computer controls the fuel injectors.they should measue about 1.4 ohms each.
put fuel directly into the throttle body and see if it will start.
check the wiring to the safety netral switch and all the grounds.
make sure that the ecu is seeing an input from the ignition switch.otherwise it will not turn on the pump.it is a complex setup and you need a wiring diagram

May 15, 2009 | 1993 GMC Jimmy

1 Answer

Fuel pressure regulator


How do you know that it is the regulator?
these 4.3 motors had a lot of trouble from 93 to 98, I know I had 2 of them.
What happened to mine was that the intake kept getting very carboned up. After I would clean it, the truck would run fine for about 5 or 6 months, then same thing.
Theres actually a class action lawsuit about this that I believe has been settled, you may have recourse if you bought it through a dealer. Good luck.You'll need it.

Nov 12, 2008 | 1994 GMC Jimmy

1 Answer

Heads


here is the sequence pay close attention to the numbers in the brackets

(8) (5) (9)
(12) (4) (1) (13)
(11) (7) (3) (2) (6) (10)

Note : 12 and 11 are at the vey front of the vehicle:
the torque sequence is as follows
step 1) torque all bolts to 22 foot pounds
step 2) turn bolts as follows
short bolts an additional 55 degrees
medium bolts an aditionl 65 degrees
long bolts an additional 75 degrees

Oct 06, 2008 | 1996 GMC Jimmy

1 Answer

Firing order


1-6-5-4-3-2

Jun 29, 2008 | 1995 GMC Jimmy

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