If the van is still it shows what i presume is the right fuel level then if i shake the van the gas gauge goes up and down somewhat slowly. I replaced the gas cap and purge valve. Should i replace the fuel pressure sensor?
2001 montana codes p0446 and p0452 and unreliable gas gauge readings.
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Steelcity
Member
It maybe the wiper in the fuel sending unit
Nevermind I googled it. So i should just replace the whole fuel pump? I have a parts van a 2004 montana would the fuel pumps be the same?
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sergeimoskva
Member
Hi !
Try to remove and clean the vent valve EVAP
This sometimes helps. (See photo)
Try to remove and clean the vent valve EVAP
This sometimes helps. (See photo)
Steelcity
Member
http://www.rockauto.com/catalog/moreinfo.php?pk=3788523&cc=1374780
I think it is the vent valve. How should i clean it?
I think it is the vent valve. How should i clean it?
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sergeimoskva
Member
Hi !
The canister and the evap purge vent valve is located on top of the fuel tank . In order to access it the tank will either have to be lowered a bit or removed. Need to omit the fuel tank to get at the vent valve. It isn't necessary to completely drop it to do that. Remove the front two straps (15mm) and undo the charcoal canister from the floor of the car (one nut 10mm). Then loosen the rearmost strap a little and the front of the tank will lower nicely. Once the tank is lowered or removed it can then be seen on top of the front of the tank next to the canister . Be careful not to stress the fuel lines going to the filter. The vent valve slides off it's bracket in the direction of the driver's side of the car. There's a little tab that has to be released to allow this. You can use a small screwdriver to get underneath the tab and open it.
Remove the valve, inspect the branch pipes, clean the connector, test it with a battery and install it again. If the vent valve is not working - replace new .
The canister and the evap purge vent valve is located on top of the fuel tank . In order to access it the tank will either have to be lowered a bit or removed. Need to omit the fuel tank to get at the vent valve. It isn't necessary to completely drop it to do that. Remove the front two straps (15mm) and undo the charcoal canister from the floor of the car (one nut 10mm). Then loosen the rearmost strap a little and the front of the tank will lower nicely. Once the tank is lowered or removed it can then be seen on top of the front of the tank next to the canister . Be careful not to stress the fuel lines going to the filter. The vent valve slides off it's bracket in the direction of the driver's side of the car. There's a little tab that has to be released to allow this. You can use a small screwdriver to get underneath the tab and open it.
Remove the valve, inspect the branch pipes, clean the connector, test it with a battery and install it again. If the vent valve is not working - replace new .
Sorry for no reply. Finally have a free day tomorrow to work on it. Also the upper transaxle line to the radiator is leaking and kind of moves back and forth. I checked my parts van and its solid. Should i replace the bolt?
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