Van doesn't accelerate well from a stop after engine is warm.
Nov 8, 2024 at 3:40 PM
Acceleration issue?
2002 CHEVROLET EXPRESS
JAVIER PRIETO
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
A very common cause of power loss is a partially plugged catalytic converter. Are there any odd smells or sounds from the exhaust? Also, a weak fuel pump can also cause this. If you haven't checked the fuel pump pressure to the engine, I would recommend that as well.
Is the check engine light staying on while the engine is running? If it is, have you had the computer scanned for diagnostic trouble codes? If not, have that done. Most parts stores will do it free of charge. Then, let me know what is found
Here is a link that explains how to test fuel pressure. You will need a fuel pressure gauge, but most parts stores will lend one to you.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Also, let me know if there are any odd odors from the exhaust or smoke.
Let me know.
Take care,
Joe
A very common cause of power loss is a partially plugged catalytic converter. Are there any odd smells or sounds from the exhaust? Also, a weak fuel pump can also cause this. If you haven't checked the fuel pump pressure to the engine, I would recommend that as well.
Is the check engine light staying on while the engine is running? If it is, have you had the computer scanned for diagnostic trouble codes? If not, have that done. Most parts stores will do it free of charge. Then, let me know what is found
Here is a link that explains how to test fuel pressure. You will need a fuel pressure gauge, but most parts stores will lend one to you.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Also, let me know if there are any odd odors from the exhaust or smoke.
Let me know.
Take care,
Joe
Nov 8, 2024 at 8:29 PM
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