ALMOST Dying while try to accelerate
#21
not nesseraly if you do not have enough fuel and you press the gas, the fuel mixture will lean a little and as air starts to come in, leans the mixture out even more and will cause poor performance and hesitation along with some stalling.
#22
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It's just engine 101. Too much fuel=flooding which is stalling. Too little fuel=no power. Too little spark/combustion=ruff idle, no power. It's not rocket science.
Anyway after giving it a second go, it sounds like the AFM is toast. A new one is a pretty penny, but there should be plenty in the junk yards
Anyway after giving it a second go, it sounds like the AFM is toast. A new one is a pretty penny, but there should be plenty in the junk yards
#23
Ok I have no clue what an AFM or MAF are.....I am not an expert here guys...help me out
Here's the other deal...i was just getting ready to sell this DAMN THING!!! I dont want to put a bunch of money into it unless I have to to get rid of the dang thing....dont have the money, time or patience....So....if you could clerify the abbreviations that would be greatly appeciated and I guess since there is are so many different suggestions I will do guess and check.........to start with anyway. Then maybe take it to someone. I have new spark plugs and everything for a tune up which were the thing I was planning to do before I sell it........I am leaning towards the fuel pump or filter..........if there are anymore suggestions it would be greatly appeciated.
I want to thank all of you for all your input and help you have been really helpful. I will definetly keep you posted on it but please if there are anymore suggestions PLEASE let me know. THANK YOU!
Here's the other deal...i was just getting ready to sell this DAMN THING!!! I dont want to put a bunch of money into it unless I have to to get rid of the dang thing....dont have the money, time or patience....So....if you could clerify the abbreviations that would be greatly appeciated and I guess since there is are so many different suggestions I will do guess and check.........to start with anyway. Then maybe take it to someone. I have new spark plugs and everything for a tune up which were the thing I was planning to do before I sell it........I am leaning towards the fuel pump or filter..........if there are anymore suggestions it would be greatly appeciated.
I want to thank all of you for all your input and help you have been really helpful. I will definetly keep you posted on it but please if there are anymore suggestions PLEASE let me know. THANK YOU!
#25
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I would also suggest as others have a fuel pressure test, and chaning the fuel filter. It isn't that hard if you know how to take the piece of the fender out. i figured it out while changing the starter and it gives easy accest to everything that is servicable hiding under the intake manifold.
#26
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Ok, no matter what, if the truck idles fine then there is enough fuel to make it go. I see no possible way that if there is fuel and it runs that it would stall if you try and add throttle. I can tell you from experience that even if the computer is "fooled" into thinking the truck is always at idle, the truck will run fine, just no power because no extra fuel is being added--just like a severely blocked fuel filter and bad fuel pressure.
Last edited by Bear80; 11-01-2006 at 10:36 PM.
#27
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I thought about that seeing as how I've had multiple occasions where these same symptoms occured after washing the engine bay and small ammounts of water or just condensation or moisture somehow gets through the filter. It stumble and won't accelerate because I think when the filter is wet, if you try to pull too much air through it brings moisture with it and that is what makes the engine stumble.
I would also suggest as others have a fuel pressure test, and chaning the fuel filter. It isn't that hard if you know how to take the piece of the fender out. i figured it out while changing the starter and it gives easy accest to everything that is servicable hiding under the intake manifold.
I would also suggest as others have a fuel pressure test, and chaning the fuel filter. It isn't that hard if you know how to take the piece of the fender out. i figured it out while changing the starter and it gives easy accest to everything that is servicable hiding under the intake manifold.
There is almost no way in hell that a fuel filter is the cause, the worst case of a filter would affect power and mileage, nothing this severe.
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Ok, no matter what, if the truck idles fine then there is enough fuel to make it go. I see no possible way that if there is fuel and it runs that it would stall if you try and add throttle. I can tell you from experience that even if the computer is "fooled" into thinking the truck is always at idle, the truck will run fine, just no power because no extra fuel is being added--just like a severely blocked fuel filter and bad fuel pressure.
#29
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I'm gonna say the fuel system including the filter is fine as well...
I'll put my money on electrical. Do the tune up and be sure to change the cap and rotor, plugs, and wires and see if the problem disappears.
It may even be a spark plug wire that has come unplugged from either the distributor or the spark plug. I always push them down everytime I'm under the hod to check for this.
Btw, this is a little off topic, but being a girl you'll probably get better results from the forum if you post naked pics in front of your truck...
I'll put my money on electrical. Do the tune up and be sure to change the cap and rotor, plugs, and wires and see if the problem disappears.
It may even be a spark plug wire that has come unplugged from either the distributor or the spark plug. I always push them down everytime I'm under the hod to check for this.
Btw, this is a little off topic, but being a girl you'll probably get better results from the forum if you post naked pics in front of your truck...
#31
I'm gonna say the fuel system including the filter is fine as well...
I'll put my money on electrical. Do the tune up and be sure to change the cap and rotor, plugs, and wires and see if the problem disappears.
It may even be a spark plug wire that has come unplugged from either the distributor or the spark plug. I always push them down everytime I'm under the hod to check for this.
Btw, this is a little off topic, but being a girl you'll probably get better results from the forum if you post naked pics in front of your truck...
I'll put my money on electrical. Do the tune up and be sure to change the cap and rotor, plugs, and wires and see if the problem disappears.
It may even be a spark plug wire that has come unplugged from either the distributor or the spark plug. I always push them down everytime I'm under the hod to check for this.
Btw, this is a little off topic, but being a girl you'll probably get better results from the forum if you post naked pics in front of your truck...
DID this problem start right after the tune up? maybe they installed the wires or rotor on wrong.
also the MAF could be bad, and telling the engine that the wrong amount of air is coming in, so inturn you have less fuel being sent to the Cylinders.
Does the truck misfire at all?
I'm putting my money on not enough fuel due to something being clogged or a bad sensor. because if it tries to stall when you hit the gas, thats when more air is coming in and the engine requires more gas to keep it running, else the A/F becomes too lean and it tries to stall.
sorry i'm not too familiar with these 4runners yet, however I can familiar anything automotive.
#32
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Did you read? The engine will run at any throttle position even if no more fuel is added than that which is supplied at idle. There is no stalling or ruff running if this happens, it's just lean and you'll know by noticeable power loss. I know you went to school and you can read and interpret....can't you??
#34
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If you unplug the afm, the truck will instantly die. Sorry for my tone just above, I was in a grumpy mood.
I do not dissagree that a cloged filter can cause power lose with hesitation but there just is no way it can cause an issue this bad. I still think it is an air mixture issue which points to the afm.
I do not dissagree that a cloged filter can cause power lose with hesitation but there just is no way it can cause an issue this bad. I still think it is an air mixture issue which points to the afm.
Last edited by Bear80; 11-02-2006 at 04:54 PM.
#37
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Man, who ลลลล all over your cornflakes?
It was said in the thread I read at least, that a tune up was done a year ago and now she has the parts to do it again but hasn't yet.
I deserve an appology...
Last edited by ovrrdrive; 11-02-2006 at 06:17 PM.
#39
Ok so I haven't read all through this thread yet so I don't know if its been covered yet.
I work at an airport where we have a ford ranger 5spd manual with a 4cyl. We had the EXACT problem that was described in the initial post.
Anyways, the mechanic at the airport dropped the fuel tank and replaced the fuel pump and filter. He found dirt, leaves, woodchips, bark, rocks, an entire load of crap in the fuel tank. I think the fuel pump tried to draw more fuel to supply the engine and was drawing against leaves/rocks/bark/wood.
I work at an airport where we have a ford ranger 5spd manual with a 4cyl. We had the EXACT problem that was described in the initial post.
Anyways, the mechanic at the airport dropped the fuel tank and replaced the fuel pump and filter. He found dirt, leaves, woodchips, bark, rocks, an entire load of crap in the fuel tank. I think the fuel pump tried to draw more fuel to supply the engine and was drawing against leaves/rocks/bark/wood.
#40
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Ok so I haven't read all through this thread yet so I don't know if its been covered yet.
I work at an airport where we have a ford ranger 5spd manual with a 4cyl. We had the EXACT problem that was described in the initial post.
Anyways, the mechanic at the airport dropped the fuel tank and replaced the fuel pump and filter. He found dirt, leaves, woodchips, bark, rocks, an entire load of crap in the fuel tank. I think the fuel pump tried to draw more fuel to supply the engine and was drawing against leaves/rocks/bark/wood.
I work at an airport where we have a ford ranger 5spd manual with a 4cyl. We had the EXACT problem that was described in the initial post.
Anyways, the mechanic at the airport dropped the fuel tank and replaced the fuel pump and filter. He found dirt, leaves, woodchips, bark, rocks, an entire load of crap in the fuel tank. I think the fuel pump tried to draw more fuel to supply the engine and was drawing against leaves/rocks/bark/wood.
Last edited by 86SR522REEFI; 11-02-2006 at 08:26 PM.