Really need your advice whether my daughters car is safe to drive or not as she needs to return to school later this morning

[tstex]

Maybe it would help if you could describe the problems that lead her to put the jeep in the shop to begin with?

The electronic throttle control system [red] warning light came on Saturday night of last week. It did not come on the next time she started it, but took it into the dealer to have it checked on Monday [2/5/24]. They kept it until Friday and she drove it from school to home on the same day. Then the check engine light came on Saturday morning [yesterday]. The check-engine light did not come on prior to the repair from the dealer.

I am trying to discern if the dealer tech did not complete the job? If so, that's why I want to get then car back to them for warranty repair.

 

[tstex]

A vacuum leak, in itself, can cause high idle. Plug the hose back on and it would be good to go.

I'm not one to put kids into questionable vehicles but unless she's going to idle it 160 miles, a small vacuum leak isn't going to matter much but I'd still look for something the tech missed putting back.

I asked her if the car seems to be idling higher than normal or anything else from the ordinary? She stated that everything seems fine and no high idling/

 

[tstex]

check engine light

The original problem was the electronic throttle control system [red] warning light came on Saturday night of last week. The check engine light came on one day after the dealer repair. the ck engine light was not on until Saturday morning, after receiving the car back Friday aftn

 

[2manyrocks]

You could look at the vacuum hoses to see if any of them are loose or split open using a good light. If you don't have an inspection mirror, your wife may have a small mirror for makeup she might let you borrow.

 

[Rockbadchild]

I would assume this is the real issue but this issue prompt the other sensor first, they reset that but now the real issue is coming out but a week to reset the sensor is not acceptable. You can unplug the batterie see if it comes back that would reset the system... if I understand correctly, the shop and your daughter school is at the same area? if so I would personally make the trip in order to get it in the shop I wouldn't tow it for that especially if it runs normally. We always get the feeling of catastrophic failure when the check engine come on but in reality its things like the gas cap is not screwed in all the way or this exhaust sensor is defective or this sparkplug is malfunctioning.

 

[tstex]

Here’s some pics of engine. Re vacuum
Hose(s), can someone point me in the rt direction? Thank you

 

[CliffordK]

Vacuum leaks are a pain. You'll probably have to get that engine cover that says Jeep V6 removed so that you can actually see the top of the engine.

Vacuum hoses are often tiny black hard plastic hoses about say 1/8" to 3/16" in outside diameter. About the size of smaller electrical wires.

They may go from the intake manifold to the ignition system (which is all covered under the Jeep V6 cover).

 

[2manyrocks]

Look at the air intake to be sure it isn't cracked somewhere, especially the accordion sections. I doubt this is where the problem is.

Remove the top cover so you can check the hoses underneath it.

The air intake runs directly into the throttle body which is the metal body next to the green arrow.

Basically, take a look at every hose they'd have to have touched in order to replace or work on the throttle body.

 

[CliffordK]

If you had the vehicle in the shop for some work yesterday, and it pops up with a new error today, I'd get on the horn and see if the shop will take you back in today.

Of course being Sunday may be a problem.

I like the suggestions above that a hose was unplugged. So, the first thing would be simply opening up that cover and tracing hoses.

 

[TBob42]

It sounds like you're having trouble in the vicinity of the throttle body which is under the top cover. The codes involve TPS throttle position sensors and the MAP sensor Manifold Absolute Pressure sensor. The commentors are correct in saying you should check vacuum lines and connections to the TPS and Map sensors. There could be an intermittent leak or a chafed or loose wire. Make sure you have an adequate light source when examining those items.
It's unlikely that the problem will strand her somewhere. Most of the fault codes will clear after half a dozen operation cycles if the problem is intermittent.
Good luck.