Strange noises in rain? and gas mileage after Walbro 255
Oct 24, 2007, 10:53 AM
#1
Strange noises in rain? and gas mileage after Walbro 255
Okay after searching the forums, I've come to the conclusion that its really hard to search for a problem if you don't know what the problem is. Anyhow, hopefully someone can pinpoint what's wrong with my car.
The other day, I was driving and upon shifting into 3rd, letting off the clutch, and depressing gas, my car would rev freely and I would hear clanking noises, like something metallic was slapping the underbody, coming from underneath the car. To me it felt like the car was not fully in gear so I downshifted into 2nd to have the same thing happen. I managed to control the problem in first gear, and further bypass the problem altogether by slipping the clutch more during shifts. This has only happened three times, coincidentally or not, when it was raining moderately. Most days the car seems fine. Any idea as to what this may be? Secondly, anyone encounter very poor gas mileage after installing a Walbro 255 fuel pump? Had mine installed by Buschur and ever since, I've been getting ~12 mpg staying out of boost...
Much thanks in advance.
The other day, I was driving and upon shifting into 3rd, letting off the clutch, and depressing gas, my car would rev freely and I would hear clanking noises, like something metallic was slapping the underbody, coming from underneath the car. To me it felt like the car was not fully in gear so I downshifted into 2nd to have the same thing happen. I managed to control the problem in first gear, and further bypass the problem altogether by slipping the clutch more during shifts. This has only happened three times, coincidentally or not, when it was raining moderately. Most days the car seems fine. Any idea as to what this may be? Secondly, anyone encounter very poor gas mileage after installing a Walbro 255 fuel pump? Had mine installed by Buschur and ever since, I've been getting ~12 mpg staying out of boost...
Much thanks in advance.
Oct 24, 2007, 11:07 AM
#2
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sorry i cant help u out on ur first question check for exhaust rattle maybe? but my average mpg out of boost on my walbro is around 18 cruising and 16-15 boosting pending how much
Oct 24, 2007, 11:15 AM
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Okay after searching the forums, I've come to the conclusion that its really hard to search for a problem if you don't know what the problem is. Anyhow, hopefully someone can pinpoint what's wrong with my car.
The other day, I was driving and upon shifting into 3rd, letting off the clutch, and depressing gas, my car would rev freely and I would hear clanking noises, like something metallic was slapping the underbody, coming from underneath the car. To me it felt like the car was not fully in gear so I downshifted into 2nd to have the same thing happen. I managed to control the problem in first gear, and further bypass the problem altogether by slipping the clutch more during shifts. This has only happened three times, coincidentally or not, when it was raining moderately. Most days the car seems fine. Any idea as to what this may be? Secondly, anyone encounter very poor gas mileage after installing a Walbro 255 fuel pump? Had mine installed by Buschur and ever since, I've been getting ~12 mpg staying out of boost...
Much thanks in advance.
The other day, I was driving and upon shifting into 3rd, letting off the clutch, and depressing gas, my car would rev freely and I would hear clanking noises, like something metallic was slapping the underbody, coming from underneath the car. To me it felt like the car was not fully in gear so I downshifted into 2nd to have the same thing happen. I managed to control the problem in first gear, and further bypass the problem altogether by slipping the clutch more during shifts. This has only happened three times, coincidentally or not, when it was raining moderately. Most days the car seems fine. Any idea as to what this may be? Secondly, anyone encounter very poor gas mileage after installing a Walbro 255 fuel pump? Had mine installed by Buschur and ever since, I've been getting ~12 mpg staying out of boost...
Much thanks in advance.
i have the same problem. when it rain and when i went through the poddle. my car will make a strange clunking noise by the driver side door or fender area. after maybe 30 sec to a min it will go away. it only happen in the rain and going through poddles of water, never in the dry days. can never find out why.
Oct 24, 2007, 11:33 AM
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i have the same problem. when it rain and when i went through the poddle. my car will make a strange clunking noise by the driver side door or fender area. after maybe 30 sec to a min it will go away. it only happen in the rain and going through poddles of water, never in the dry days. can never find out why.
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Oct 24, 2007, 11:58 AM
#10
i have the same problem. when it rain and when i went through the poddle. my car will make a strange clunking noise by the driver side door or fender area. after maybe 30 sec to a min it will go away. it only happen in the rain and going through poddles of water, never in the dry days. can never find out why.
Oct 24, 2007, 02:21 PM
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I don't know about your clunking noise, but i can relate to the poor gas mileage after the installing the fuel pump. I don't know why, but i think letting the fuel pump prime helps a little bit.