The valve cover gasket was changed. (Left side) Consequently the cruise stopped working control

v6 engine not told,
let me guess that.
ok easy v6 means 3.7 L (226 cu in) magnum v6

I have 3.7L in my jeep.
mine is 2010
the service manual covers all this, buy it or rent it?

not told which bank needs offing/ left or right.
well all engine work here, is top down, and what you see in the way must come off
but not told the goal, ??remove the valve cover,you never said that.
just disconnect or remove to get to it( just touch the cover that?)
just use a hand stethoscope.(held to all places there)???????????

the service manual , this page, called rockers covers.
asks LEFT or RIGHT first ,so I toss the coin and land on left drivers side
USA left, is LHD driver. side

1. Disconnect negative cable from battery.
2. Remove the resonator assembly and air inlet hose.
3. Disconnect injector connectors and unclip the injector harness.
4. Route injector harness in front of valve cover.
5. Disconnect the left side breather tube and remove the breather tube.
6. Remove the valve cover mounting bolts.
7. Remove valve cover and gasket.

now right.(called in USA LHD , passenger side)
RIGHT SIDE

1. Disconnect battery negative cable.
2. Remove air cleaner assembly, resonator assembly and air inlet hose.
3. Drain cooling system, below the level of the heater hoses.
4. Remove accessory drive belt.
5. Remove air conditioning compressor retaining bolts and move compressor to the left.(tie it back gently) no hoses OFF !!!
6. Remove heater hoses.
7. Disconnect injector and ignition coil connectors.
8. Disconnect and remove positive crankcase ventilation (PCV) hose.
9. Remove oil fill tube.
10. Unclip injector and ignition coil harness and move away from valve cover.
11. Remove right rear breather tube and filter assembly.
12. Remove valve cover retaining bolts.
13. Remove valve cover and gasket.

this answer is for only removal
to just touch it , is between step 1 and what ever it takes to do you you never told yet.

or use youtube, how to remove cylinder heads, so see all steps
to where you want to be. (less sure)

1. A blown fuse: If one of the fuses responsible for powering the dash lighting has blown, the backlighting will not work. Check the owner's manual to find the location of the fuse box and replace any blown fuses.
2. A faulty dimmer switch: If the dimmer switch is not functioning properly, it could be causing the backlighting to stop working. Try replacing the dimmer switch to see if that fixes the problem.
3. A damaged wiring harness: If the wiring harness that powers the backlighting has been damaged, the backlighting will not work. You may need to have the wiring harness repaired or replaced by a mechanic.
4. A malfunctioning dashboard control module: If none of the above issues are causing the problem, the dashboard control module could be malfunctioning. This will require the attention of a mechanic.

It's also possible that the issue could be caused by a combination of these factors. If you are unable to fix the problem on your own, it's a good idea to have a mechanic diagnose and repair the issue.

1-2 Shift Solenoid Valve Replacement ,same for other shift solenoids !
Remove the case side cover. Refer to Control Valve Body Cover Replacement . Disconnect the transaxle wiring harness.
Control Valve Body Cover Replacement
Removal Procedure

1. Remove the air inlet duct. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.4L.
2. Remove the engine mount struts. Refer to Engine Mount Strut Replacement - Left Side and Engine Mount Strut Replacement - Right Side in Engine Mechanical.
3. Remove the shift cable bracket from the transmission.
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
5. Remove the left front tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
6. Remove the left engine splash shield. Refer to Engine Splash Shield Replacement in Body Front End.
7. Remove the left tie rod end from the steering knuckle. Refer to Rack and Pinion Outer Tie Rod End Replacement in Power Steering System.

Remove the left wheel speed sensor harness connector (2) and the harness (1) from the lower control arm. Remove the left lower ball joint from the left steering knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension. Remove the left stabilizer . Refer to Fastener Tightening Specifications in Suspension. Reposition and secure the drive axle toward the rear of the vehicle. Remove the trans mount nuts at the frame.
Caution: Failure to disconnect the intermediate shaft from the rack and pinion stub shaft can result in damage to the steering gear and/or damage to the intermediate shaft. This damage may cause loss of steering control which could result in personal injury.
Remove the intermediate shaft (1) from the steering gear (2). Refer to Intermediate Steering Shaft Replacement in Steering Wheel and Column - Tilt.
Support the left side of the frame with a utility stand. Remove the left side frame bolts. Use the utility stand in order to lower the left side of the powertrain enough to gain access the case side cover bolts.
Support the transmission with a transmission jack. Use the utility stand in order to lower the left side of the frame enough to access the case side cover lower bolts. Position the drain pan under the transaxle. Disconnect the transaxle wiring harness electrical connectors.
Remove the case side cover bolts (56-58). 56 are regular bolts ,58 are studs .
Remove the case side cover pan (53).
If not replacing the side cover, steps 24, 25, 26, and 27 are not required.
Remove the case side cover gasket (54). Remove the case side cover inner gasket (59).
Inspect the case side cover (53) for the following conditions:
?€¢
Damaged or porous gasket sealing surfaces

?€¢
Damaged or porous casting surfaces

?€¢
Damaged or stripped bolt holes

Inspect the case side cover gasket (54) and case side cover inner gasket (59) for damage. The gaskets are reusable if they are NOT damaged. Clean the case side cover gasket surfaces
Install the 1-2 shift solenoid (315A). Connect the transaxle wiring harness. Install the case side cover. Refer to Control Valve Body Cover Replacement .
Important: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
Reset the TAP values. Refer to Transmission Adaptive Functions .
Good luck , this job is a real pain in the ***

P0066 Air assist injector solenoid valve circuit low input . possible causes--Air assist injector solenoid valve poor electrical connection , Faulty air assist injector solenoid valve, Air assist injector solenoid valve harness open or shorted.

The valve cover gasket isn't hard to change. Oil on the plugs indicates a more serious problem. Smoke from the exhaust would be from rings, rich mixture, worn valve guides. It may be that the engine is overfull (that would show on the stick). Oil loss from a leaking gasket would smoke under the hood and leave oil on the engine and the ground.

will try to help.if it's only the valve cover leaking,i'm guessing they sold you the rubber one that says ne rtv sealant needed. take your back off, try not to break the rubber seal when removing!clean the top of head where gasket goes. clean the valve cover really good!clean the grooves out that the gasket slides into. buy some blue trv glue, apply a thin coat to top of head, let it setup while you apply another thin coat to valve cover, let set 10mins. apply gasket to valve cover making sure to push the gasket into the grooves on valve cover. don't worry about neatness. let the valve cover set on a hard surface with the gasket against the hard flat surface[such as a garage floor,or clean driveway] after10 more minutes install the valve cover,make sure and take your time. place valve cover onto motor,than hand start each bolt to insure thay are going into the prope bolt holes. after you have each bolt hand started, start at center of valve cover snugging the bolts down to motor. do not crank down or apply excessive force when tightening those bolts. you should see some of that blue rtv glue coming out around the valve cover when applying torque to the valve cover bolts. only secure them snug at first. let car set for 15mins. start car and look for leaks around the cover, do not over tighten those bolts but you may need to look for a leak, go to bolt closest to leak and turn it 1/4 at a time until leak stops. but if you do this step by step, you'll not have a leak issue. you may have pinched the gasket when you replaced it. hope this helps and thank you for choosing fixya.com

most likely it is the valve cover gasket. it covers the valve train where there is alot of oil to lube the top of the motor. if the head gasket was leaking it may have more signs of running poorly. also having coolant leaks also. so i will have to say valve cover gasket. now usally you may have a oil burning smell with it depending on the area of the lek but not always.

the valve cover can easily be seen when the hood is open. it is right on the top and where it meets the clyinder head is where the gasket is and the leak can be seen.

if you have more question please ask.

the smoking will probally due to oil burning and should be checked that the gasket is on right but the light should not come on because of new leads something sounds a miss id goto a diffrant garage

It is a Valve Cover Gasket. You can get a new one at any Auto Parts Store. To make this repair last longer, Do not get the Cheap one, Get a Felpro Gasket and it will Quadrupel the Gasket Life. Please Rate My Response! Thanks!

Simple enough, thank you!