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my car can't climb even a small ramp

Motor Vehicle Maintenance & Repair Asked on March 7, 2021

I own a Toyota IQ model 2010

I have been experiencing this issue from the past year that my car when stopped on a small ramp it wouldn’t even climb. Then I have to reverse all the way and get some momentum to climb the ramp.

I have shown it to a mechanic and cleaned all the spark plugs, oil filter, air filter, catalytic converter, fuel pump but none of these would repair my problem.

Also I noted my engine is reducing engine oil and my mechanic told me I had to change the engine block. So what do you guys suggest what should I get checked up because the aircon work perfect and my car speeds up pretty well but it has acceleration issues! Also my car vibrates alot when idle.

One Answer

Have a mechanic do a compression check with a gauge. It doesn't cost much (about $100 USD here in the USA) and doesn't require any more skill than changing spark plugs. The results will tell you definitively if the engine block needs to be replaced.

The North American version of your car, the Toyota Scion, has had a long history of power/acceleration problems caused by a defective VVT-i controller, which changes cam timing for optimal power. Most of these cases are accompanied by an illuminated Check Engine Light (CEL). The repair is also not expensive, about $100 USD.

Other owners with model years 2007-2012 have reported heavy oil consumption and power loss issues due to defective pistons made by Toyota. There are no reports of a CEL, only low oil light on dashboard. This issue seems to pertain to the 2az-fe engine. Again, a compression check will tell if you have this problem.

If you have changed the transmission fluid (ATF) and the problem has gotten worse, try changing the fluid a least once more. A neglected transmission, after changing the fluid, can suddenly dislodge sludge particles that clog the transmission. Changing the fluid again can often clear the particles and restore transmission performance. You may even have to change the fluid several more times every 1,000 km.

Answered by Carguy on March 7, 2021

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