It might be the egr valve, but when I am accelerating slowly out of my parking lot, it seems to have little power. I have to hit the gas and hit about 5000 rpms to get it to open it up, and then it seems to drive fine. Any Ideas?
2007-05-01 11:22:01 · 10 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Ford
I dont want to say it does it when its cold. When it sits for a long time, in the cold weather theres no problem. Its when it sits in the heat of the day before I go to work in the evening is when it seems to do it. There is no engine light on which is why I doubted it was an 02 sensor. I know the egr valve can cause throttle or acceleration problems. And as for a technician, im in the military and stationed out in Jersey, and the mechanics out here are unbelievably high priced to do the simplest of things, so Id like to figure it our for myself!
2007-05-01 13:40:46 · update #1
The first question is "is the check engine light on?" A malfunction of the O2 system or EGR will cause the light to illuminate. If the light is not on, then the problem is usually not with the engine control system. The EGR will cause the car to stall at idle if its hung open and a hung EGR will not be felt over 2000 rpm which is the speed it normally opens at. So if its not stalling and it takes up to 5000 rpm to get moving, then its not the EGR.
the second question is "is this a condition that only happens cold or after the vehicle has sat for a while?"
there are different things that come into play with a cold engine. You may have a coolant temp sensor that is not reading the cold engine so the car doesn't go into cold start enrichment. Think of it as a carburated car that doesn't have a choke and that would be the affect you would experience.
The next question is "have you changed your fuel filter lately?"
a restricted fuel filter will show up more on cold starts as the amount of fuel that you need to start and run a cold engine is much greater than on a warm engine. I'd start with changing the fuel filter.
You didn't mention if the car jerks into gear when you get up to 5000 rpm or if it slowly accelerates smoothly. If it 'kicks in' it may be that your transmission fluid is low. Trans fluid expands tremendously when warm and if its cold it may take some time to transmit the power to the wheels because of low pressure. Check the trans fluid and top it off if necessary.
beyond the fuel filter and the trans fluid I'd recommend you have a competent technician check it out before you spend any money guessing on O2 sensors or EGR valves--thats a costly learning curve and the money is better spend on a quality diagnosis
hope that helps
2007-05-01 11:39:31 · answer #1 · answered by honda guy 7 · 0⤊ 0⤋
lots of advise here. most likely not an o2 sensor. check the truck for codes just because the lights not on doesnt mean there are none. second whats the fuel pressure when it happens, could be a pump issue.
someone said coil and that is possible as well.
Also try disconnecting the maf sensor and see if the problem goes away. when you disconnect it take it for a short road test.... do not continue to drive with it disconnected as prolonged driving w/o maf input can cause catlist melt downs
2007-05-07 15:45:54 · answer #2 · answered by moe 4 · 0⤊ 0⤋
Sounds like the O2 sensors, I had 2 bad ones and my Explorer sputtered and ran like it had no power.... so I scanned the computer with my OBDII code reader and ended up replacing 2 oxygen sensors, it did the trick. Scan your computer for codes and go from there.
2007-05-01 12:27:30 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You should get the vehicles computer scanned and check for any problems as well as codes and then you will have a good idea on what the problem truly is.
2007-05-07 01:30:52 · answer #4 · answered by Anonymous · 0⤊ 0⤋
probably not does it do it when the engine is cold? are there any trouble codes or is the check engine light on have you checked your fuel pressure ?
2007-05-01 11:44:47 · answer #5 · answered by Timothy V 1 · 0⤊ 0⤋
as many have said it will not run on just three cylinders, not enough compression to turn over the other half. also there is no block heater to plug in as it is not a diesel. Diesels use the plug in block heaters.
2016-05-18 03:28:24 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I would also say the EGR system....or a bad vaccuum leak, which is tied to the EGR......
2007-05-01 11:26:10 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Check your coil
2007-05-04 23:10:32 · answer #8 · answered by JT B ford man 6 · 0⤊ 0⤋
the first place to start is pull the trouble codes
2007-05-01 11:32:23 · answer #9 · answered by ClassicMustang 7 · 0⤊ 1⤋
I BELIEVE THAT MAKE AND MODEL WOULD BE STICKING BUTTERFLY.POSSIBLE CATTALITTIC CONVERTER FAILURE,TRY EMMISSIONS TEST.
2007-05-08 17:41:19 · answer #10 · answered by MIKE S 3 · 0⤊ 0⤋