Previous in Forum: Heat Exchangers   Next in Forum: Control Valve
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
6 comments
Rate Comments: Nested
emma3048
Member

Join Date: Jan 2011
Location: Located in Warri Oil city Nigeria
Posts: 9

Poor Performance of Toyota Avensis Model Code AT221L-ALPEKW, Engine 7AFE, ATM

11/07/2013 3:43 AM

I have a Toyota Avensis with the above model and engine type. It also has electric fuel injection system.

About a week ago, I made a journey of about 218 kilometres from my home town to my place of work after spending the weekend with my family.The performance of the car was satisfactory without any sign of problem. After the day's job in the office, I started the car, engaged the drive to move, I observed very sluggish movement. Quickly I managed it to my mechanic about 500 meters from my office. New plugs were installed but the car could not rave. The mechanic advised that I should manage it home till the next day since it was getting dark. But before that I gauged the gear oil level and found out that it was less than the normal level and I quickly topped it up.

The next day, on engaging the reverse gear, I noticed that the car was moving in the forward direction instead of going backwards. A gear mechanic was called in and he diagnosed gear problem resulting from burnt fibre. I don't seem to believe him since the gear has not been dismantled.

Please can you advise me on the way out of this problem. If gear problem, do I need to replace it of work on the existing one?
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
2
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: Poor performance of Toyota Avensis Model code AT221L-ALPEKW, Engine 7AFE, ATM

11/07/2013 6:17 AM

One way out of the problem is to post the vehicle on an internet auction site (name withheld). After a few days, someone will show up with some money, swap it for the vehicle, and take it away.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply Good Answer (Score 2)
No more Good Answers. Go to first "Almost" Good Answer
kramarat
Guru
Hobbies - Fishing - New Member

Join Date: Jun 2008
Location: Raleigh, NC USA
Posts: 13529
Good Answers: 468
#2

Re: Poor performance of Toyota Avensis Model code AT221L-ALPEKW, Engine 7AFE, ATM

11/07/2013 7:00 AM

Burnt fiber?

He may be saying that you need a new clutch assembly.

__________________
 Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. Ben Franklin
Register to Reply
ozzb
Guru
Hobbies - Fishing - Old Salt Hobbies - CNC - New Member United States - US - Statue of Liberty - New Member

Join Date: Mar 2007
Location: Rosedale, Maryland USA
Posts: 5197
Good Answers: 266
#3

Re: Poor Performance of Toyota Avensis Model Code AT221L-ALPEKW, Engine 7AFE, ATM

11/07/2013 4:16 PM

In the heading you list the vehicle having ATM automatic transmission. The say gear oil was added. First thing most mechanic do when there seems to be transmission problems is smell the oil. If the oil in and automatic transmission smells burnt. Usually the clutch packs are worn. But if you put gear lube in instead of ATF then it would smell burnt.

You also didn't say how much you correct the transmission's fluid level. Low level would cause the packs to slip your sluggishness.

If you corrected it with gear lube could be the the reason for the continued sluggishness and why it went forward in reverse. ATF is a 10 w oil. More a hydraulic fluid in an ATM then a lubricant though it does serve to lubricate. Gear lube is a 89 w oil pretty thick. Pump may have a problem pumping it and don't thing it will drain from the clutch packs very fast when they shift.

If that is the case you used gear lube have it drained and changed. If that don't correct the problem time to have the transmission rebuilt.

__________________
 Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
Register to Reply Score 1 for Good Answer
Go to Next "Almost" Good Answer
Wal
Guru

Join Date: Jun 2011
Location: Phnom Penh
Posts: 4019
Good Answers: 102
#4

Re: Poor Performance of Toyota Avensis Model Code AT221L-ALPEKW, Engine 7AFE, ATM

11/08/2013 1:14 AM

The engine would/does not rev and now the transmission is playing up?

It was working fine until you stopped and parked it after a long thrash for the day and then it played up.

Has it been raining there? Did you hit any pot holes at speed? Drive through any deep water?

The ECU controls the engine and the transmission, ask your mechanic to check the OBD for trouble codes and check all the electrical connectors to all the sensors on the engine and to the transmission and to the ECU(s). They could be partially disconnected or water has entered them. Check the vacuum plumbing while you're at it.

The transmission mechanic is basing his diagnosis (guess) on his experience with the symptom, ie a clutch is not pulling in or, if it is, it is slipping because it is burnt. That's how he made that diagnosis without opening up the box.

The only commonality I see is the ECU. If the transmission was toasted the engine should still rev.

Where you parked the car, are there any rats? Check for rodent damage (chewed wires). Very common problem here.

__________________
 Difficulty is not an obstacle it is merely an attribute.
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
dineshjegdeesh
Active Contributor

Join Date: Aug 2013
Posts: 11
#5

Re: Poor Performance of Toyota Avensis Model Code AT221L-ALPEKW, Engine 7AFE, ATM

11/08/2013 6:20 AM

when cr4 became olx????????

__________________
 loves learning........ do u love to teach?????
Register to Reply Off Topic (Score 5)
Wal
Guru

Join Date: Jun 2011
Location: Phnom Penh
Posts: 4019
Good Answers: 102
#6
In reply to #5

Re: Poor Performance of Toyota Avensis Model Code AT221L-ALPEKW, Engine 7AFE, ATM

11/08/2013 6:28 AM

What is "olx"

__________________
 Difficulty is not an obstacle it is merely an attribute.
Register to Reply Off Topic (Score 5)
Register to Reply
Have a Different Question?
6 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

dineshjegdeesh (1); kramarat (1); ozzb (1); PWSlack (1); Wal (2)

Previous in Forum: Heat Exchangers   Next in Forum: Control Valve

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (64 right now)
Show Members
Advertisement