B2500 broke - fuel problem?
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Joined: May 2004
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B2500 broke - fuel problem?
Please help.
I have a b2500 - 1998. Ususally runs fine. Not now though. Starts and idles fine. However once you mash the gas to get it out of the idle range it misses-like it is only shooting fuel every other time? Normally when you mash the gas you get a solid response. If you think of this as 1-2-3-4; now when I mash on the gas and hold it, I get firing like in time of _-2-_-4. I used to work on diesel generators and we would refer to this as surging or hunting - however this is usually at idle as well as under load. I can't drive it so I would appreciate any help ya'll can give.
Have a great Memorial Day.
PS thank you (COBRAXP) for the blend door fix. It saved me alot of money and worked great.
I have a b2500 - 1998. Ususally runs fine. Not now though. Starts and idles fine. However once you mash the gas to get it out of the idle range it misses-like it is only shooting fuel every other time? Normally when you mash the gas you get a solid response. If you think of this as 1-2-3-4; now when I mash on the gas and hold it, I get firing like in time of _-2-_-4. I used to work on diesel generators and we would refer to this as surging or hunting - however this is usually at idle as well as under load. I can't drive it so I would appreciate any help ya'll can give.
Have a great Memorial Day.
PS thank you (COBRAXP) for the blend door fix. It saved me alot of money and worked great.
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Joined: Jan 2007
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From: middle of no where, MI
If it's starving for fuel, it could be the fuel filter. that would be a nice cheap spot to start. My neighbor had a van doing the exact same thing. just a thought, sure would be nice if it was that cheap huh? haha
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Wish it was too. It has been about 3 years for the fuel filter. But the truck showed no other signs. When I started the truck, this time, I immediately put it into reverse and put my foot on the gas because I was in a hurry. I say this becasue in the past I have noticed that if I try to gas my truck before a minute-or-so the trucks runs erratic but it has always smoothed out. Not this time.
I fell it is something in the electrical. I checked all the fuses I could see and unhooked the battery for twenty minutes. No good. It idles all day long but when I give it gas it acts like it is hitting every other time.
Thanks for the response.
I fell it is something in the electrical. I checked all the fuses I could see and unhooked the battery for twenty minutes. No good. It idles all day long but when I give it gas it acts like it is hitting every other time.
Thanks for the response.
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Thanks Ford racing. I got to thinking about it and simple things first. I bought a fuel filter and put it on today. No luck. I also checked (according to Haynes) the Throttle positioning sensor for voltage and resistance - checked good. I checked the Mass airflow sensor - it also checked good. I checked the Idle air control - it checked good.
Any thoughts else it could be? How do you know if your fuel pump is going bad? Also what about trash in the fuel? I was thinking about this but I filled up on base and have already used a half tank and haven't had any other symptoms.
PS. Thanks to the website for the information on fuel filters. I have a 98 Mazda B2500 and used the tool in the site below. Once I used to tool on the first side the second side came off in seconds.
Lisle Angled Disconnect Tool - Model 39400 at Sears.com
Any thoughts else it could be? How do you know if your fuel pump is going bad? Also what about trash in the fuel? I was thinking about this but I filled up on base and have already used a half tank and haven't had any other symptoms.
PS. Thanks to the website for the information on fuel filters. I have a 98 Mazda B2500 and used the tool in the site below. Once I used to tool on the first side the second side came off in seconds.
Lisle Angled Disconnect Tool - Model 39400 at Sears.com
