engine hard to start when cold but starts fine after. Any suggestions?
Nov 8, 2011 at 11:38 PM
Runs fine but it is hard to start when cold
1996 GMC C1500
CSTARKC
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Hello,
There are several reasons why an engine is hard to start.
It could be due to a weak fuel pump, a faulty fuel pressure regulator that does not work properly when cold. Dirty throttle bore, worn out spark plugs, low engine compression.
The best course of action would be to take a look at each possibility and take appropriate action.
Like clean out the throttle body, check the fuel pressure when the engine is cold, change spark plugs etc.
Here is a helpful guide:
https://www.2carpros.com/articles/engine-cranks-excessively-before-starting
This engine should have 56-62 PSI of fuel pressure.
Please let me know if you have any questions.
Thank you.
There are several reasons why an engine is hard to start.
It could be due to a weak fuel pump, a faulty fuel pressure regulator that does not work properly when cold. Dirty throttle bore, worn out spark plugs, low engine compression.
The best course of action would be to take a look at each possibility and take appropriate action.
Like clean out the throttle body, check the fuel pressure when the engine is cold, change spark plugs etc.
Here is a helpful guide:
https://www.2carpros.com/articles/engine-cranks-excessively-before-starting
This engine should have 56-62 PSI of fuel pressure.
Please let me know if you have any questions.
Thank you.
Dec 29, 2021 at 1:46 PM
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