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sgm11155
sgm11155, ASE Certified Technician
Category: Car
Satisfied Customers: 589
Experience:  i have worked on all models and makes of bus cars for over 25 years
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1995 Trooper S: with 175,000 mi..meticulously..always start instantly

Customer Question

1995 Trooper S with 175,000 mi. All maintainence and dealer suggested repairs have been meticulously adhered to.
Will always start instantly when cold, even below freezing, or hasn't been run for several hours. If engine is up to norm temp or sits 30 minutes, a long crank time always follows. Once engine starts there are no further signs of malfunction or irregular operating conditions.
Guessing a bad temp sensor? Flooding engine as it detects always senses cold conditions?
Is it an air intake sensor or coolant sensor and where are they located.
If that is the bad part, what is approximate shop time to replace? If not what is the most likely issue?
Submitted: 5 years ago.
Category: Car
Expert:  sgm11155 replied 5 years ago.

Customer:

hi i am shannon i will help on this issue

Customer:

the better bet is that you may have a bad crank angle sensor

Customer:

you can test this with a spark tester

Customer:

Full Size Image

Customer:

this is the one i use. you can buy from almost any parts store

Customer:

i got it from Autozone

Customer:

put it in line on a plug or coil wire

Customer:

set it too 25.000 volts

Customer:

have some one turn the engine over when you know it will not start

Customer:

if there is no spark right away .it may be the crank angle sensor

Customer:

if you do get spark then it is not the sensor

Customer:

if the spark plugs are fuel fould before cranking . you may have a leaking injector or fuel pressure regulator

Customer:

but test the spark first

Customer:

if you have any questions please ask now

Customer:

i will switch too Q&A mode you can post your questions there i will answer

Expert:  sgm11155 replied 5 years ago.

please post your question in the box below thanks shannon

 

P.S. i will get you the location of the crank sensor and post it right away.

Expert:  sgm11155 replied 5 years ago.
please let me know if you have any more question on this issue . just ask a fallow on question