When engine is cold, it starts like a carburetor car with no choke, even though it is fuel injected. After it warms up it runs great.
Mar 19, 2019 at 11:43 AM
Cold starting
1988 ISUZU TROOPER
GUZZIEDTUC
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Hey GUZZIEDTUC,
Does this issue only affect the idle?
When started from cold does your engine start with a fast idle and then drop down to normal?
If you drive the vehicle from cold does it drive okay, not lacking power?
When warm you have no running issues?
A good starting point would be to check for vacuum leaks.
Guide in the link below.
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
It looks like there is a lot of vacuum control on this motor.
Also check for disconnected vacuum lines. There should be a vacuum system diagram sticker on the underside of the hood.
Check and clean the throttle body, guide below.
https://www.2carpros.com/articles/throttle-actuator-service
Hope that gives you a good place to start. There may be a few steps in narrowing down this issue.
Regards, Joe
Does this issue only affect the idle?
When started from cold does your engine start with a fast idle and then drop down to normal?
If you drive the vehicle from cold does it drive okay, not lacking power?
When warm you have no running issues?
A good starting point would be to check for vacuum leaks.
Guide in the link below.
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
It looks like there is a lot of vacuum control on this motor.
Also check for disconnected vacuum lines. There should be a vacuum system diagram sticker on the underside of the hood.
Check and clean the throttle body, guide below.
https://www.2carpros.com/articles/throttle-actuator-service
Hope that gives you a good place to start. There may be a few steps in narrowing down this issue.
Regards, Joe
Mar 20, 2019 at 11:54 AM