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Tech413, ASE Certified Technician
Category: Car
Satisfied Customers: 469
Experience:  25 year automotive technician ASE master L1 certified California Smog Lincense Honda Gold level
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96 isuzu rodeo: it wont start when its cold outside if..gets below

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i have a 96 isuzu rodeo & it won't start when it's cold outside if gets below 32 degrees outside
Submitted: 7 years ago.
Category: Car
Expert:  Tech413 replied 7 years ago.

Does it crank and not start or does it not crank at all?

Customer: replied 7 years ago.
it will crank but won't start
Expert:  Tech413 replied 7 years ago.
Have you tried holding the accelerator pedal all the way down and cranking the engine for 15 seconds or more?
Customer: replied 7 years ago.
Expert:  Tech413 replied 7 years ago.

Do you know if you have spark when this happens?

Customer: replied 7 years ago.

yes,it just don't wanna start when it gets below 32 degrees


Expert:  Tech413 replied 7 years ago.
Sorry to ask so many questions, but to get an idea of the problem I need to ask. If you were having a problem starting the vehicle when it is hot outside that would be easy. How many miles do you have and how long has this been happening?
Customer: replied 7 years ago.
it just started doing it & it has 200,000 miles
Expert:  Tech413 replied 7 years ago.
Does it make a difference what the fuel level is? Does it do it more often when the tank has more or less fuel or have you noticed?
Customer: replied 7 years ago.
either it just does it when it's below 32 degrees
Expert:  Tech413 replied 7 years ago.
My initial thought would be the fuel pump is freezing up. If this is the original pump then all the weather seals have probably deteriorated. allowing moisture into the electric motor. This would make the most sense given the ambient temperature.
Customer: replied 7 years ago.

do i have to put a whole new pump in or just change the seals

Expert:  Tech413 replied 7 years ago.
The pump comes as one assembly pump, fuel level sensor. The only problem you may run into is that when you install a new pump the computer may need to be reprogrammed to be calibrated to the new fuel level sensor. You will know this if the low fuel light starts flashing after you install the new pump assembly.
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