₦airaland Forum

Thanks GAZZUZZ for the prompt response, will get on it and give feedback.

GAZZUZZ:
Your timing is supposed to be variable, is stuck.

Possible causes

1. Mechanic or part seller welded your vvti actuator/s

2. Engine is filled with sludge.


Also consider replacing your radiator with a brand new unit.

Hello,
Help is needed with this car. A corolla 2009 (dubai) 1.8l, auto trans.

Car has heavy vibrations, a rough idle and rpm at idle is low, btw (500 to 600) when in DRIVE and (550 to 650) in NEUTRAL. This is after car is warmed up.
When a/c comes on, rpm first drops (300-400) then increases to about 800 and car is more balanced (less vibrations) but very sluggish between gears 1,2 and 3.

Things noticed in the car.
- heavy vibration at idle (better in N worse in D)
- slow acceleration (especially when a/c is on)
- loss of power (difficult to overtake, difficult going uphill)
- delayed shift in gears & slipping gears
- High fuel consumption (seems to be getting worse)
- Recently I noticed oil reduction. After oil change, oil level dropped to about half within a month.
- Noticed some leakages around the cylinder head.(No leakages on the floor where I park)

I have had this problem for over a year but its visibly getting worse.

Work on the car so far.
-Changed 3 of the 4 coils earlier in the year.
-Changed spark plugs
-Serviced & cleaned throttle body (electrical one)
-Nozzles tested/serviced
- Serviced transmission and oil change
-Changed car engine earlier in the year due to overheating (problem was and still present after engine change)

Recently
-Changed throttle body
-Changed alternator (rewire said it was an electrical issue) - problem not solved
- Changed engine mount - still heavy vibrations
- Nozzles, coils and spark plugs have been checked and are said to be fine. Also the O2 sensors, Mass Air flow, throttle pedal inside the car were checked.
- A pressure test was done on the radiator, it was said to be ok.
- Compression test was done on all cylinders, they were said to be ok.
- Injector nozzles and fuel pump were tested as well.

The only observation from the tests was that engine was running rich.

Vehicle had displayed no error code until last 2 weeks, put in a thermostat because there wasn't any and fan was run directly. car displayed a code afterwards but didn't check till the next day when a brain box was tested with the engine.

The code is P0010 came up afterwards.(The codes P0717 and P0335 came up on the previous engine but didn’t on the new one)

Catalytic converter was taken out last week (problem still persist)

The mechanics have advised that the engine be opened up examined but I have told them to hold on.

Kindly Help.