Question about 2003 Toyota Highlander

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The belts in my haghlander have never been changed. What belts do I need to replace to ensure they don't break on the road?

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-If you want to replace, replace all belt.

Good Luck


Posted on May 18, 2015


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Change timingbelt has no power when putting in gear

If there were no problems prior to the belt replacement, then I would suspect something wrong with either the belt-to-gear timing or with the installation process itself. One question - did the belt break or did you replace it as preventive maintenance? Many engines are interference engines, meaning that if the belt breaks, the pistons and the valves will collide and cause internal damage to the engine. This damage will cause loss of compression, and thus, power. If the belt did not break, then I suspect that either the cam/crank marks are not properly aligned or that in the process of aligning the marks (if the engine is an interference one), proper care was not taken to ensure that the crankshaft was not rotated too far manually to cause valve damage.

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Once the timing belt break,and replaced,still no starting,,,mechanical guy say its the computer,its the second one.

I think I got most of what you said.
If you can not troubleshoot the problem yourself, you'll have to have it towed to a different shop.
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Gas fumes getting into car, problem being corrected, further inspections shows drive belt and tensioner need replacing, center link on idle arm to replace,coolant leaking so lower intake gasket needs...

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The center link on the idler arm would be a good idea in time. You could wait for a while, but don't compromise your steering and handling to much.

As for the lower intake gasket you could run into big problems down the road. GM put a plastic type gasket into these 4.3L motors and they fail all the time. Even at low miles like you have. The problem is you might just be leaking coolant outside the engine block for now, but the gasket could fail and get coolant inside the motor and cause much more problems when mixing with oil and possible engine failure.

Good luck! Let me know if you have other questions. I just replaced a lower intake gasket on a 2001 GMC Jimmy a few months ago.

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2006 pontiac vibe getting close to 100K and feel the need to change the timing chain. Someone advised that is this breaks it destroys the whole engine Trying to divert trouble later.

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Generally, I will replace timing chains IF I have to pull my engine out of the car for any reason, but won't change it at set intervals.

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1984 Nissan 300zx

the timing belt should be changed every 60,000 miles.
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