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Toyota mini van wont start when cold
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tewrobert
Novice
Mar 1, 2009, 3:20 PM
Post #1 of 3
(1431 views)
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Toyota mini van wont start when cold
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I have a 92 toyota mini van that runs great, But its getting harder and harder to start with cold weather being the culprit, I mean I am in south alabama and if it only gets down to 50 now it just wont start, Before it would start but took several minutes, Now it have to get about 60 degree's to start, But after it starts its just like a new car.......
and today it just will not start at all, I am about half desperate, i dont mind buying parts but I sure dont want to start guessing at whats wrong......
Could this be something in a carburetated starter?
I am open to any ideas, thankyou in advance :)
(This post was edited by tewrobert on Mar 1, 2009, 3:22 PM)
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Loren Champlain Sr
Veteran
/ Moderator
Mar 1, 2009, 3:41 PM
Post #2 of 3
(1428 views)
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Re: Toyota mini van wont start when cold
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A '92 Toyota should be fuel injected. (No carburetor). The fuel delivery is controlled by the computer via sensors.
A couple of things come to mind, here. 1) Poor fuel pressure, restricted or plugged fuel filter, or 2) Coolant temp sensor. If the spark plugs are old, replace them.
1) A cold engine needs more fuel than a warm one. If it isn't getting enough pressure on initial start up, it may require extended cranking. Check the fuel filter and have the pressure tested.
2) Again, being cold, it needs more fuel. Since you have no choke (it's injected), it relies on the information that the computer has via the coolant temp sensor. If the sensor is lying, and telling the computer it is 80F, it's not going to supply enough fuel for the cold engine. With that said, temp sensors usually default to -40F or so when they go bad, and this doesn't sound like a flooding condition. But you'll need to see what the computer is seeing, as in a scanner. You'll have two sensors; One for the temp guage and one for the computer. The one for the computer will have two wires going to it. The one for the guage will only have one. If you have an ohmmeter, you can measure resistance of the coolant temp sensor at varying temps and we can give you those specs if you need them.
Loren
SW Washington
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satyaseo
User
Mar 1, 2009, 10:49 PM
Post #3 of 3
(1425 views)
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Re: Toyota mini van wont start when cold
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hey i am too facing the same problem thanx for asking asking before me.....
(edit - remove hyperlink, TomG)
(This post was edited by Tom Greenleaf on Mar 1, 2009, 11:25 PM)
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