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2005 Ford F650, Cummings diesel, loss of power when hitting hills, check engine light comes on, code says low fuel presser. idles fine, just happens when you are running up the road. If it was a gas engine it feels like it is missing

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

eitan
  • 291 Answers

SOURCE: missfire

Locate you computer (right front kick panel) and tap on it with a pen while the car idles... Also flex it back and forth with your hands to see if the car runs rough or quits... You may need a new one.

Posted on May 15, 2008

chispitas
  • 69 Answers

SOURCE: Emission light

map sensor. check your spark plugs, wires, etc. maybe a loose wire plug. did u mention check engine light, i wonder can you tell me what diagnostic code came up. go to ur nearest auto parts if u dont have a scanner. and pull them codes out.

Posted on Feb 25, 2009

outdoorsman5
  • 631 Answers

SOURCE: loss of power on 1998 ford powerstroke 7.3

Generally the computer is reading a problem with the fuel pressure being to high or to low. The ICP is one problem it could be and you changed it. The other could be Fuel pressure regulator control solenoid or problems with the injector (s).

Posted on Nov 25, 2009

Testimonial: "thanks alot, this pretty much confirmed what i thought. someone befor me put an elec. fuel pump and straight wired it to the ign. thanks."

  • 75 Answers

SOURCE: 99 Ford F350 Powerstroke diesel; misfire code; loss of power

The first thing i would check is the Glow Plug Relay. Depending on your engine there should be (2 solenoids, or just one) sitting on the top front a little to the right of center. (right bank of engine that is) If you have 2 of them one should be smaller and it is the one furthest to the rear of the engine. It controls power to your glow plugs for cold start up. When you turn the key to the on position the 2 larger wires should both have power. When the ignition is off only one wire should have power. Check this if you do both these tests and only one wire has power with key on or off then you need to make sure that the key switch is sending power to the solenoid. Do this by checking the smaller wire with key off. It should not have power and then with key on it should have power. If this is good and test one is bad then the relay is bad. Note This is not true for the larger realy that sits furthest foward on the engine. The bigger one. This test will not work for it but it controls your intake heater. On another note: This is a timed circut and will "kick out" after about 1-2 minutes. In otherwords it does not stay on all the time that key switch is on it will for for about 1-2 minutes then shut off! Next would be your injectors are getting weak or bad and even your HPOP could be getting weak. or glow plugs in engine are out, In otherwords there are alot of possibilities causing your problems If you are getting a misfire code for your injectors then you may have some weak or inop injectors. Any way this will give you a pretty easy test for the most common failure which is the Glow plug relay. About 35-40 bucks at your local auto parts house.

Posted on Feb 03, 2010

  • 25 Answers

SOURCE: 2001 Ford F650 with 7.2 Cat deisel acceleration problem

Check your TPS Throttle positioning sensor. Sounds like it has a dead spot in it or it is failing. May also be a wiring harness issue or loose connection at TPS too! If its intermittent then it will soon go out completely. It should be located on your fuel pedal. Remove it and check it with an ohm meter. Check resistance all the way thru from 0-100 percent. When it is not working it should do nothing and show no resistance. When it is working the resistance value will increase and or decrease as you turn the sensor.

Posted on Feb 22, 2010

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2 Answers

When i come too hill 13 suzuki swift looses power,


no year,stated, and no country stated.
google earth cant find hill 13. so......
is transmission slipping? is it and automatic trans.? not stick shift.

slip means , engine RPM rises fast, but car speed does not.
some think that is power loss and is not. it's just slipping.
slip is transmission problems.
ok its not slip.:
which engine?
1.0 L G10 (LP2) I3
1.0 L G10T (LS3) turbo I3
1.3 L G13A/BA (L72) 8V I4
1.3 L G13B/G13K 16V DOHC I4
1.5 L G15A 16V I4
1.6 L G16 16V I
970 cc F10A I4
1298 cc G13BA I4
1298 cc G13BB 16V EFi I4
1527 cc TUD5 diesel I4
1.3 L M13A I4 (petrol)
1.5 L M15A I4 (petrol)
1.3 L I4 (diesel)
so saying my engine acts odd , is useless with out knowing what engine is there.....see why?

ill then answer for generic engines. GAS or Petrol.
  1. never tuned up the engine in a decade, tops list.!
  2. bad fuel,
  3. weak spark or #1 caused.
  4. cam belt slipped do to no service, (or chain on cam)
  5. Low fuel pressure
  6. or too much fuel pressure ,floods or rich misfires.
  7. misfire. causes low power ., lots of causes. over 50, in fact.
  8. The CLuster Check engine light on? running?
  9. Scan the PCM yet to see if it has DTCs; errors to report?
there are steps or tests in each case.
why not get the car serviced. they will do those tests.

Jun 29, 2015 | Suzuki Cars & Trucks

2 Answers

Troubleshooting a rough idle


Have the engine computer scanned for trouble codes. Misfires are from loss of fuel, spark, or compression. Check the fuel pressure, check that all spark plugs are getting spark, and if all good so far, test engine compression. Low compression in a cylinder will cause misfires and loss of power.

It could also be a vacuum leak- a loose or cracked vacuum hose or an intake gasket leak.

Jul 27, 2014 | Dodge Stratus Cars & Trucks

1 Answer

2005 ford icon losing power during acceleration i used injector cleaner it became a bit better then sent it to a mechanic who cleaned the intake manifold and sensor but it became worse now he suggests i...


this is a toy forum? , you might try ford for better answers.....?

iCON, you mean IKON< right?

HOT and cold engine,
Is hot idle speed RPM right near 800 and steady,not racing fast?

power loss, is the CEL lamp glowing running, yes,scan it.
post engine type exactly. one of these?
1.3 L I4 (petrol)
1.6 L I4 (petrol)
1.4 L I4 (diesel)
1.8 L I4 (diesel)

so its the first 2, as you said, coil, so its a GAS engine.
power loss, do the 60k tuneup
clean the MAF, sensor. if it has one. ask how. first.
does engine power return , at wide open throttle, held? up hill?
yes/no
if no, weak maf, air leaks or low fuel presssure
if power loss is only brief, then bad TPS.
my guess this engine, is MAP based, no MAF,
if so, then clean the nipple on the MAP sensors.
make sure its not clogged .
If the map works ,any air leaks cause fast idle. and FULL POWER>
so id bet the power loss is from low fuel pressures.
that is why i ask for WOT power up a hill, hot, got that.
if just tip-in power loss (recovers) that is a bad TPS.
the do wear out. easy, at 100k.

there are 2 EFI systems, which one yours has im clueless but can fix both , easy. (maf or map based) aka. air /speed density systems.

Feb 02, 2014 | Toyota Camry Cars & Trucks

1 Answer

1995 Ford F-250 diesel idles fine, loses power when driving more than 5 minutes. Blinking fuel filter light goes steady.


Did you ever change the fuel pump? most of the time when fuel pump is weak does that on hills, and then is hard to restart

Nov 13, 2013 | Cars & Trucks

1 Answer

2009 ford f650 with cummings stop engine light come on, what could be the problem


See if there is an idiot light on that looks like a bunch of raindrops. Most diesels need the water removed from the fuel-line, and they have a valve placed accessibly for you to do that yourself. Once you remove the water, the stop engine light should go off. If not, call your Ford Dealer service center; they are pretty helpful. Of course, mine was only a year after 9/11 on an F550 that was the chassis for a fire engine, so maybe that was why they were willing to help me.

Jan 15, 2013 | Ford Expedition Cars & Trucks

1 Answer

2001 Ford F650 with 7.2 Cat deisel acceleration problem


Check your TPS Throttle positioning sensor. Sounds like it has a dead spot in it or it is failing. May also be a wiring harness issue or loose connection at TPS too! If its intermittent then it will soon go out completely. It should be located on your fuel pedal. Remove it and check it with an ohm meter. Check resistance all the way thru from 0-100 percent. When it is not working it should do nothing and show no resistance. When it is working the resistance value will increase and or decrease as you turn the sensor.

Feb 21, 2010 | 2001 Ford Super Duty F 450

1 Answer

Loss of power on 1998 ford powerstroke 7.3 . pcm threw a p1211 code went to ford and got new icp. already replaced ipr. the hpop is full of oil. it idles all day and can hold 3000 rpms just fine but...


Generally the computer is reading a problem with the fuel pressure being to high or to low. The ICP is one problem it could be and you changed it. The other could be Fuel pressure regulator control solenoid or problems with the injector (s).

Nov 25, 2009 | 1996 Ford F350 Crew Cab

1 Answer

The engine boggs down at high rpm. For instance, hesitates and boggs down when going up a hill or highway speeds. Idles normally and runs fine at low speeds.


if the fuel filter hasn't been changed do so, if the fuel filter is ok and has been changed out due to this problem you will need to monitor the fuel pressure under a load and make sure it doesn't drop below 45 PSI, it it does you will need to replace the fuel pump and the fuel filter. U also do say if you have a check engine light or have had the system tested for trouble codes that may be triggered by this loss of power problem.

Sep 08, 2009 | 2001 Ford Explorer Sport Trac

1 Answer

I have a 99 accord that lacks power when I hit a hill. It runs fine and gets good mileage but I have to downshift from 5th to 4th on minor hills. Check engine light is off.


howdy, there are a few things on your 99 Accord that could cause that problem. usually all will eventually turn on the check engine light in time. make sure your check engine light is working when the key is first turned to run.

* a partially clogged catalytic converter.
* faulty O2 Sensor (Bank 1 Sensor1).
* low fuel pressure caused by a bad fuel pump, clogged fuel filter(in the tank) or a bad fuel pressure regulator on the injector rail.
*bad ignition switch which can cause intermittent stalls.

now i don't know which engine you have, (i'm guessing a 4cyl.) there were two 2.3L- 4cyl. engines (F23A1 & F23A4) and a 3.0 V6. but if you also have a rough idle or low idle miss, a jumped timing belt can also causing loss of power.

if you know anyone with a scanner that reads the computer datastream, see what the O2 Sensor (Bank 1 Sensor1) is doing & look at fuel trim readings. Also check backpressure on the converter where that O2 Sensor is screwed in.

please let me know if i have helped, totally confused or scared you to death! Good Luck!

Jun 17, 2009 | 1999 Honda Accord

1 Answer

1999 F350 Super Duty Crew Cab Diesel loss of power The Check engien light came on then a couple of miles later it lost power. The truck would still run but now power up hills or excelleration. I think it...


What motor does it have ? if it has the 7.3 L its on the top middle of the engine. If teh light is on you probly got other problem but checking the fuel and air filters a re a good place to start

Jan 13, 2009 | 1999 Ford F350 Regular Cab

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