Has trouble on take of sometimes but mostly it is when it should switch to third gear it will jump up to 3500 rpms but still only wants to go 30 to 35 miles and hour.we found a small amount of water on the top of the head or intake manafold but have had no luck with how to get to get to see if that is what it is and was also wondering if you could help me know where to find the rocker arm on the front end
SOURCE: 98 gmc jimmy front hub
1. Put the vehicle in gear, apply the parking brake and break loose the driveaxle/hub nut with a socket and large breaker bar.
2. Loosen the wheel lug nuts, raise the vehicle and support is securely on lackstands. Remove the wheel. Remove the driveaxle/hub nut.
3. Unbolt the brake caliper and hang it out of the way with wire. Remove the brake disc.
4. On models with four wheel ABS, trace the electrical lead for the wheel speed sensor along the upper control arm, then forward along the frame rail and unplug the electrical connector.
5. Remove the hub assembly-to-steering knuckle bolts. Remove the brake disc shield and wheel speed sensor assembly and set aside.
6. Tap the hub assembly from side-to-side to break it loose from the steering knuckle. Pull the hub assembly off the end of the driveaxle. Wrap the end of the driveaxle with a rag to prevent damaging it. If the hub is stuck on the splines on the end of the driveaxle, use a puller to free it.
7. Installation is reverse of removal process. Be sure to lubricate the driveaxle splines with multi-purpose grease, and tighten all of the fasteners to the proper torque.
SOURCE: AC trouble
the best way is to take it into an ac shop without a manifold gauge set adding freon is just a guess you have a leak because freon never wears out it just leaks out. also the right way to do it would require having your system vacuumed out for at least 30 min. to get out all the moisture and air.
SOURCE: 1996 jimmy gmc fuse box
Look on the driver's side fender well under the hood. Should be a long black rectangular box there. That is the power center or fuse block. The relays and fuses are inside. The top is not hard to remove. Hope this helped and best wishes.
SOURCE: 1996 GMC Jimmy Need help trouble shooting. Turns over but won't
Fuel pump or injector assembly. Need to know what the fuel pressure is before throwing a part at it. By what you are saying I'm leaning tword the fuel pump. Make sure the wires at the top of the sending unit are not burn. There is a small 4 wire connector on the inside of the sending unit. If it's burnt you will need to replace both the pump and sending unit.
SOURCE: 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)
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