Hello. I am new to this forum, so I apologize if these questions have been asked before. I have scanned several of the posts and found them extremely helpful and educating, although I have yet found the solution to my issue.
I have a 99.5 Jetta. I purchased it last year with 230k miles on it, now it has 250k. From when I picked it up to present I am getting 42 mpg, which is fine. About 3 weeks ago I experienced lack of power one morning. It was chilly, so I thought it might have been a fuel item. Next morning, same thing. I installed a new fuel filter. After installed, power restored. I thought the problem was solved. Not so fast.
That evening returning from work power was lost. Thought it may be air or debris in the fuel line. Blew out the lines, purged the air. Power returned then left the next morning.
Started to replace all the vacuum hoses. Replaced thermostat (was taking a long time to get to 190 degrees). Cleaned EGR valve. No improvement.
When started cold max RPM is 2000, if running 60 minutes it can get about 3200 RPM. When warm, pedal to the medal speed is 60 MPH. It can do 0-60 in about 2 minutes.
Bottom line, the longer it runs the better it performs however even after one hour it is still not good.
Any ideas ?
Thank you,
Jeff
I have a 99.5 Jetta. I purchased it last year with 230k miles on it, now it has 250k. From when I picked it up to present I am getting 42 mpg, which is fine. About 3 weeks ago I experienced lack of power one morning. It was chilly, so I thought it might have been a fuel item. Next morning, same thing. I installed a new fuel filter. After installed, power restored. I thought the problem was solved. Not so fast.
That evening returning from work power was lost. Thought it may be air or debris in the fuel line. Blew out the lines, purged the air. Power returned then left the next morning.
Started to replace all the vacuum hoses. Replaced thermostat (was taking a long time to get to 190 degrees). Cleaned EGR valve. No improvement.
When started cold max RPM is 2000, if running 60 minutes it can get about 3200 RPM. When warm, pedal to the medal speed is 60 MPH. It can do 0-60 in about 2 minutes.
Bottom line, the longer it runs the better it performs however even after one hour it is still not good.
Any ideas ?
Thank you,
Jeff