Hello forum members, and thank you so much for your past help.

My 1995 Camry LE wagon had been rough idling for a few months and have had to put in Neutral when at a light. I replaced dog-bone mount, the air filter, sparks and wires and last week the transmission fluid. After the trans fluid change it now 'runs' smoother but did still vibrated in gear.
I watched several YouTube videos and yesterday I cleaned the Throttle Position Sensor but the 'photo below maybe shows not much build-up...or IS that quite a bit of build-up? However when removing the rubber hose to the TPS it was torn / ripped almost all the way around where it connects to the metal engine part. I fixed that with electrical tape (for now) and there is a nice difference thankfully and idling is not as rough but not smooth enough either.
I have two questions please:

1) Regarding the picture of my air intake hose that was cracked, fixed and pushed back in place, I can't remember whether the rubber hose should be pushed over (past) the metal lip or just to it as I have it ...or doesn't it matter and it's OK as is?
I tried locating help on the forums questions and answers but it's tricky typing the right words to get there.

2) Is the other picture added here of my MAF sensor? Since I'm not sure and they seem to be in different areas on Camry models I wanted to make sure. My 'photo possibly shows it located on the drivers side metal inside wall. The picture is not too clear as it was getting dark.
Can this MAF sensor safely be cleaned /sprayed to maybe smooth out idling even more?
I understand battery cables don't need to be disconnected when cleaning this part but after cleaning the sensor would my 'check engine light' come on?
Apparently the glass bulb part should not be handled or sprayed too closely but also kept upright. Maybe I should leave it alone?

Thank you very much and I hope I made myself understood enough.

 

The 6 cylinder engine has a MAF. The location is between the air filter box and engine intake. One can try to clean the MAF. The internet will have posts. If the ign key is off the MAF should not have any electrical power. Just disconnect the electrical plug to it.

The 4 cylinder has a MAP. Follow the small hoses shown in the photo to find the one that goes to small plastic box mounted on the firewall having a wiring connection plug to it. You should be able to see the hose and box easily from above the engine. Don't try to clean the MAP and they seldom fail.

While at it check all those small hoses for cracks which can cause an air leak.

The intake hose installation looks OK. The outer each of the throttle body barrel would have a ring the hose slides over. The metal tab shown stops the hose and the clamp keeps it attached.

Might research cleaning the Air Idle Control valve which controls idle. Use a solvent spray that is safe for plastics as the valve is plastic.

 

Thank you very much for your help. Yes mine's a 4 cylinder.

In the morning I will remove that same throttle rubber hose and give the Idle Air control valve just inside, which I saw when cleaning the Throttle sensor- the small rectangle part on the right, a couple of good sprays, unless I should go carefully.
According to two YouTube videos that's all that's needed, although another suggested taking off the middle of three rubber hoses beneath all of that so the Carb cleaner which he used, wouldn't go into the engine.

The spray can pictured in my 'photo is 'CRC Throttle Body & Air-Intake Cleaner', and this is what other Youtubers used so it would seem to be safe for that AIC plastic valve.
The YouTube video mentions the car might hesitate starting after that but to keep trying for just a few seconds each time or give extra gas.

Yes since I missed the large two tears on the rubber hose for so long as they were underneath, I could easily have missed finding smaller cracks in smaller hoses.
Thank you!

 

Thank you for all your help, the Camry is running better now after sealing up the hose rips but not that smooth yet but I wondered:

I just noticed that looking from the back side of my air filter housing box I see a circular hole (obviously letting air in) and wondered - should there be a plug over this to stop air getting in from there? Wouldn't it make sense that this hole could contribute to some rough idling?
Please offer your opinion once you have time.
Many thanks, Kevin.
Pictures added.

 

The hole might be where the air intake temperature sensor plugs into the box. Its a plastic probe connected to a wiring harness. See link. Look for this item-it just plugs in by hand only.

https://www.rockauto.com/en/moreinfo...Did5wOSQ%3D%3D

 

Amazing! I just went out with a flashlight and eventually located it! Thank you again, what a find.
Maybe it'll help with the smoothing out since I checked the rest of the small hoses all over and found no tears or splits.

I do intend to spray and clean the Idle Air Control valve very soon though. I watches YouTube videos and apparently one can spray the air Intake cleaner directly into the rectangle hole inside the rubber intake hose but should remove the middle of the three rubber hose below it and catch the draining cleaner (with any grime) onto a rag. Otherwise all of that can drain into the motor.

The Camry is driving somewhat smoother now and I'm enjoying it more again.
Thank you toyomoho.

 

The temp sensor measures intake air temp to adjust fuel/air ratio. The engine might run better now with improved MPG.

Be careful which hose is removed from the intake air control valve as the unit also has two 1/4 inch coolant lines running to it.

 

Hello again and thank you for all your great help.
All this time the main issue has been the rough idling and vibrating in gear at a light, but somewhat smoother when out of gear at a light.

The spark plugs and wires have been changed, dog-bone mount replaced, fixed shreds in the air intake hose very well last week, cleaned the intake throttle too which wasn't too bad really, and drained and filled the transmission. All of that did help a little with the vibration.

Yesterday I changed the oil and it was really dark even after just 5 months. Now the Camry runs more powerfully and the gear change is smooth but now, with seemingly added power it vibrates even louder.

I did notice today though that the noise is coming from under the drivers side and front wheel area. Could it be the transmission mount? I'm not sure how to test this but I did watch a couple of videos on how to replace it. Apparently the transmission must be 'lifted' a bit to be able to remove the bolts under there.
If this may be part, or the main problem I feel I should leave it to a professional.

I'm no pro but besides this transmission mount I have no idea why this vibration, and now a rattle since the car seems to be more powerful.
Thank you for any suggestions to be able to narrow it down before paying my mechanic.
I much appreciate all the help already.

 

Look in the engine compartment or under car where the two axles plug in to the differential. The trans mount supports the combo trans/differential housing. Its a solid rubber unit thus doubt it can fail too bad.

Rev engine and watch for excess engine rocking. The front lower engine mount is hydraulic-check for leakage at mount rubber bellow cover. The lower rear may or may not be hydraulic otherwise its solid rubber.

Find an open safe area then at low MPH make left and right sharp 360's and listen for clicking, popping, grinding from the axle CV joints. Increased vibration under acceleration can be a bad CV joint. Inspect CV joint rubber bellows from splits, etc. Typically when a joint starts to wear out it makes a click noise when making sharp turns.

Make sure the idle RPM is around 750 hot as lower RPM's will cause more engine vibration.

 

Thanks so much.
Will digest your helpful comments a little more in order to check out tomorrow what you wrote here.
Yes when I make sharp turns there is a clicking sound on the front drivers side which I have noticed for a few weeks now but hadn't thought it might be attributed to the rough idling. As you will realize, I'm a bit of an amateur but so appreciate your wonderful help.
Thank you for writing and I'll check out more in the morning but it does look like the drivers side CV . )