Rocker arm torque specs on a 97 gmc jimmy 4.3
4.3L Engine
The 4.3L engines may be equipped with either of 2 rocker arm retaining systems. If your engine utilizes screw-in type rocker arm studs with positive stop shoulders, no valve lash adjustment is necessary or possible. If however, you engine utilizes the pressed-in rocker arm studs, use the following procedure to tighten the rocker arm nuts and properly center the pushrod on the hydraulic lifter:
Another method to tell when the piston is coming up on the compression stroke is by removing the spark plug and placing your thumb over the hole, you will feel the air being forced out of the spark plug hole. Stop turning the crankshaft when the TDC timing mark on the crankshaft pulley is directly aligned with the timing mark pointer or the zero mark on the scale.
The valve arrangement is as follows:
E-I-I-E-I-E (right bank-front-to-rear)
E-I-E-I-I-E (left bank-front-to-rear)
Posted on Sep 23, 2010
head bolt torque specs on a 97 gmc jimmy 4.3
First, tighten the bolts to 25 ft. lbs. (34 Nm).
Next, tighten the bolts to 45 ft. lbs. (61 Nm).
Finally, tighten the bolts to 65 ft. lbs. (90 Nm).
Posted on Sep 22, 2010
there are 3 relays in the glove box, which is the correct one
I believe it's the middle relay in the glove box. You should feel the relay click on when you turn the key's, but you only have 2 seconds.
Posted on Apr 05, 2009
1997 GMC jimmy engine code P0171, P0174
po171 fuel injection system to lean bank 1 po174 same thing but bank 2 that could be the oxygen sensors
Posted on Apr 05, 2010
oil pan bolt pattern
Are you wanting a "torque sequence" for the oil pan? When in doubt, it is always best to start in the center and work your way out to both ends. If you have a 4.3L engine, that has an aluminum oil pan, it is not that big of a deal to begin with. Here is a picture anyway.
Posted on Mar 18, 2012
I just got a code po440 and I dot no where to start it seems like its harder to start the engine and it seems like I get a gas smell sometimes
P0440 - Evaporative Emission Control System Malfunction
This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
Symptoms: You likely won't notice any drivability problems.
Causes: A code P0440 could mean one or more of the following has happened:
The gas cap is not installed or working properly
The purge solenoid has failed
The canister is plugged and not working properly
Possible Solutions: With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
Inspect the EVAP system for cuts/holes in tubes/hoses
Inspect for damaged or disconnected hoses around the Evap purge solenoid
Check and/or replace the sensor
Check and/or replace the purge valve
Have a professional use a smoke machine to detect leaks
Hope helps.
Posted on May 23, 2011
1997 gmc jimmy fuel gauge stuck on half full
I can tell you almost for certain your fuel level sending unit is bad, I have been able to fix them though. It requires removing the gas tank and then the fuel pump. You can if your inclined, bend the brushes on the small circuit board over more so they will make better contact on to it. Other wise its a new fuel pump assembly, check all plugs and wiring by unpluging and repluging them to insure no bad connect. It is possible it could be the guage itself, but in thirty years of fixing cars never had a bad guage
Posted on Jan 07, 2009
I changed the spark plug wires and I may have crossed them. Can I get a get a diagram of where each spark plug wire goes to?
Firing order 1-6-5-4-3-2
------------
| 2 4 6 |
front | |
| ------- |
| | 6 5 ||
of | | 1 4 ||
| | 2 3 ||
| ------- |
vehicle | |
| 1 3 5 |
------------
Distributor rotates clockwise
Posted on Sep 15, 2008
Under hood fuse box 1997 gmc jimmy
Driver side under the hood, fuse positions on the underside of the fuse box lid
Posted on Dec 09, 2016
How do you remove a starter on a 1997 GMC Jimmy?
1995-97 4.3L MODELS and 1995-99 2.2L models
Fig. 5: The starter motor on later model 4.3L engines is retained by two long bolts
To install:
Hope helps.
Posted on Sep 07, 2010
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