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Toyota Misfire And White Smoke On Cold Starting


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sa2017
New User

Feb 26, 2017, 3:22 PM

Post #1 of 5 (141 views)
Toyota Misfire And White Smoke On Cold Starting Sign In

Hi Everyone

I would like to post my issue here and this is my first time I post threads on this forum and hopefully I get some help from you members.

My issue is that I have just rebuilt a 2004 Toyota Voxy engine (Engine Code: 1AZ-FSE) 2.0L Petrol Automatic and am having the following problems with the car when I start it:

1/ Car rev too high (2000RPM) on start up
2/ Car starts blowing lots of white/grey smoke on cold start and clears away after running for 2-3 minutes and also when I put My hand in the smoke it feels a little bit greasy.
3/ Car also has got some misfire that can be felt when listening to the exhaust pipe blowing intermittently.
4/ The engine gets really hot real quick and the fan keeps coming on very frequently but I think this might be due to some air blockage in the cooling system or some leak in the radiator.
5/ The oil dipstick kind of smells of petrol.
6/ No fault codes given when scanned with my Autel MaxiSys Pro MS908P.

So my questions to the experts here are:

Do you think this is an injector leak issue? or a Vacuum leak because I suspect some bad intake manifold gaskets?
The engine sound is smooth and all the valve stem seals, piston rings, con rod bearings, head gasket and timing chain replaced and the crack shaft was regrinded by professionals in the rebuild process . And also the engine was thoroughly cleaned before assembling it.

Your quick replies will be highly appreciated as I am really not sure where to start with fixing this engine.

Thanks.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 26, 2017, 4:52 PM

Post #2 of 5 (115 views)
Re: Toyota Misfire And White Smoke On Cold Starting Sign In

Those are things you don't just take wild guesses at. You test for those things.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



sa2017
New User

Feb 27, 2017, 2:25 AM

Post #3 of 5 (101 views)
Re: Toyota Misfire And White Smoke On Cold Starting Sign In


In Reply To
Those are things you don't just take wild guesses at. You test for those things.


Thanks but that is why I am here to get the help with doing the right tests because I have been testing but to no luck so far.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 27, 2017, 5:20 AM

Post #4 of 5 (84 views)
Re: Toyota Misfire And White Smoke On Cold Starting Sign In

Start with testing the fuel pressure and monitoring how much it drops after the key is turned off.

Pressure test the cooling system and see if it holds pressure for a long period of time.

Run chemical tests on the cooling system.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



sa2017
New User

Feb 28, 2017, 1:43 AM

Post #5 of 5 (66 views)
Re: Toyota Misfire And White Smoke On Cold Starting Sign In

thanks for your advice, will do my best to do those tests but i found one small vacuum hose disconnected at the back and and i reconnected it and the car is a lot better at idle but when coming to a stop or reversing the car judders and is about to stall,is driving rough and less power and also low rev at idle and the car any clues as to what could be causing this issue?






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