I have a 1996 Ford Explorer with over 170K miles on it. It starts fine when the engine is cold, but will rough languish when the engine is warm. For example, if I start it first thing within the morning it will start and idle normally, but if I shut it sour and then re-start it 30 minutes later, it idle rough and acts like it requirements to stall. Then after a few minutes of driving it idles and runs perfectly. I enjoy already replaced the following: EGR, MAF sensor, spark plugs, spark plug wires, idle air control spout, had the fuel injectors cleaned, checked for vacuum leaks, replaced the mobile, air filter, and fuel filter. A Ford mechanic suggested that it might be the fuel pump. Is this possible? How do I know if that is it or not- how do you interview it? Thanks!
the best way to find out is hook a scan tool up and find out what go out of range when it goes into closed loop. at 170k on a imaginative fuel pump is pretty long. to test it you have to know the specs on what it should be flowing and disconnect the return file, energize the pump (cycle the key) and measure how much fuel comes out. be sure to hold a decent sized container that measures oz
maybe the o2 sensor is on its mode out. maybe bad fuel? low compression(blow by, most credible not)
headgasket, or fuel pump... probably the fuel pump cuz its not gettin the *gas* it needs or watever, i cant really think how to word it, but yea i would read out one of the 2.
OR, spark plug maybe in wrong, travel by the spark plugs and listen for air coming out by at the plugs, it will be like a bumpbumpbumpx10000, but individual AIR /spraying out.
yea do wat the first guy said to do, cycle the key... turn it on and off on and stale about 4times and then start it. after you'll know its the pump or sumthing to do with *the fuel system.
one or more of the cyclinders could be losing compression
maybe the o2 sensor is on its mode out. maybe bad fuel? low compression(blow by, most credible not)
Answers: Scan your codes. When you first start the suv the computer runs in idle mode when you restart and temps bring up it runs in a differt mode . having it scan is the only way. Don't focus its a fuel pump. Fuel pumps normally just progress out with no notice. Just a guess mind you in need running a scan i would say oxygen sensor.
the best way to find out is hook a scan tool up and find out what go out of range when it goes into closed loop. at 170k on a imaginative fuel pump is pretty long. to test it you have to know the specs on what it should be flowing and disconnect the return file, energize the pump (cycle the key) and measure how much fuel comes out. be sure to hold a decent sized container that measures oz Here are some additional things you could check:
1. Compression --> buy a compression gauge or jump to mechanic.
2. Fuel pressure at fuel rail (to test fuel pump)--> buy fuel pressure guage or dance to mechanic.
3. o2 sensor
4. Look for white smoke in exhaust, or milky color of oil--> indicates head gasket overrun.
5. Check the fuel lines themselves for blockage
6. Check for carbon buildup in exhaust system.
7. Bad fuel?
8. Double check for vacuum leaks
headgasket, or fuel pump... probably the fuel pump cuz its not gettin the *gas* it needs or watever, i cant really think how to word it, but yea i would read out one of the 2.
OR, spark plug maybe in wrong, travel by the spark plugs and listen for air coming out by at the plugs, it will be like a bumpbumpbumpx10000, but individual AIR /spraying out.
yea do wat the first guy said to do, cycle the key... turn it on and off on and stale about 4times and then start it. after you'll know its the pump or sumthing to do with *the fuel system.
one or more of the cyclinders could be losing compression
maybe the o2 sensor is on its mode out. maybe bad fuel? low compression(blow by, most credible not)
I enjoy a 1991 Buick imposing and...
the best way to find out is hook a scan tool up and find out what go out of range when it goes into closed loop. at 170k on a imaginative fuel pump is pretty long. to test it you have to know the specs on what it should be flowing and disconnect the return file, energize the pump (cycle the key) and measure how much fuel comes out. be sure to hold a decent sized container that measures oz
How do I adjust my 2006 colorado...
maybe the o2 sensor is on its mode out. maybe bad fuel? low compression(blow by, most credible not)
How do i achieve to the wiper...
headgasket, or fuel pump... probably the fuel pump cuz its not gettin the *gas* it needs or watever, i cant really think how to word it, but yea i would read out one of the 2.
OR, spark plug maybe in wrong, travel by the spark plugs and listen for air coming out by at the plugs, it will be like a bumpbumpbumpx10000, but individual AIR /spraying out.
yea do wat the first guy said to do, cycle the key... turn it on and off on and stale about 4times and then start it. after you'll know its the pump or sumthing to do with *the fuel system.
one or more of the cyclinders could be losing compression
maybe the o2 sensor is on its mode out. maybe bad fuel? low compression(blow by, most credible not)
How do i totally disarm the immobiliser...
Answers: Scan your codes. When you first start the suv the computer runs in idle mode when you restart and temps bring up it runs in a differt mode . having it scan is the only way. Don't focus its a fuel pump. Fuel pumps normally just progress out with no notice. Just a guess mind you in need running a scan i would say oxygen sensor.
the best way to find out is hook a scan tool up and find out what go out of range when it goes into closed loop. at 170k on a imaginative fuel pump is pretty long. to test it you have to know the specs on what it should be flowing and disconnect the return file, energize the pump (cycle the key) and measure how much fuel comes out. be sure to hold a decent sized container that measures oz Here are some additional things you could check:
1. Compression --> buy a compression gauge or jump to mechanic.
2. Fuel pressure at fuel rail (to test fuel pump)--> buy fuel pressure guage or dance to mechanic.
3. o2 sensor
4. Look for white smoke in exhaust, or milky color of oil--> indicates head gasket overrun.
5. Check the fuel lines themselves for blockage
6. Check for carbon buildup in exhaust system.
7. Bad fuel?
8. Double check for vacuum leaks
Problems next to My 96 Ford Explorer?
I'm not familiar near the model but you might be able to disconnect the wire going to the fuel pump and turn the push button on to run and see if your getting proper voltage, you could also try the pcv (positive crankcase ventilation valve) that's only in the order of 6 buck and allot easier to change then carrying out tests voltageheadgasket, or fuel pump... probably the fuel pump cuz its not gettin the *gas* it needs or watever, i cant really think how to word it, but yea i would read out one of the 2.
OR, spark plug maybe in wrong, travel by the spark plugs and listen for air coming out by at the plugs, it will be like a bumpbumpbumpx10000, but individual AIR /spraying out.
yea do wat the first guy said to do, cycle the key... turn it on and off on and stale about 4times and then start it. after you'll know its the pump or sumthing to do with *the fuel system.
one or more of the cyclinders could be losing compression
maybe the o2 sensor is on its mode out. maybe bad fuel? low compression(blow by, most credible not)
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