Question about 1995 Toyota Hi-Ace
Engine vibrates and many times goes off when idling or slow speed (gear 1)
Rough idle can be caused by vacuum leak, test the lines into the intake, if the dont hold vacuum, follow the line to detect the cause. Also the PCV could be broken and lead to a wrong air mixture. If check engine light is on I would expect lean bank codes...
Posted on Apr 19, 2014
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Posted on Jan 02, 2017
very possible you might have a bad harmonic balancer ( crankshaft pulley). have that checked then go from there with replacing it.
Posted on Aug 06, 2009
SOURCE: Vibration problems in 1kz te
Check calibration. Muffler supports from the front till the back, there should be proper clearance. Is your diesel fuel of proper cetane rating for the engine? Check your belt drive system, is there any part that is excessively draining engine power, power steering pump, air con compressor, alternator or generator? Do these preliminary steps and isolate.
Posted on Nov 29, 2009
SOURCE: idling speed too low
Sounds like a possible vacuum leak, check to make sure all hose are connected and serviceable. Make sure your intake hoses/pipes are secured and fastened from the filter on to the throttle body. Also you can use a screwdriver to slowly turn the idle adjuster screw at the throttle body. This will Raise the idle of your vehicle. However only if all else fails.
Posted on Dec 14, 2009
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Throttle Body Cleaning on vehicles without electronic throttle control (most 2003 and down)
You can in most cases repair this slow speed stall or unstable idle by cleaning the engine throttle valve and the idle speed control valve using a product called CRC Spray Throttle valve cleaner. Spray the cleaner into the air intake of the engine with the hose removed from the throttle body, the engine will try to stall so hold up the idle speed manually. Once you have used up about 1/2 can of the cleaner stall the engine out while spraying and turn the key off, disconnect the negative battery cable for 5 minutes and then reconnect and drive the car for a about 25 miles of varied driving modes. If this doesn't cure the problem you may need the fuel injectors professionally cleaned by the dealer service dept.
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