Engine power loss and cut off when put in gear

Tiny
CMORGAN5
  • MEMBER
  • 1 POST
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 107,000 MILES
Engine Performance problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 107000 miles

Check engine light came on. Vehicle won't go over 40mph. What could cause this?
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
This is often called limp mode. Sounds like the PCM is shut down. You need to have the cars computer read for any fault codes and get back to us with codes for more info?

COMPUTERIZED ENGINE CONTROLS
POWERTRAIN CONTROL MODULE (PCM)
PCM monitors engine operating conditions by input received from engine sensors. Control of output actuators determines fuel mixture and idle speed. For PCM location, see POWERTRAIN CONTROL MODULE LOCATION table.
The engine control system consists of the PCM, relays, modules, sensors, switches and actuators. The PCM sends out electrical reference signals to engine sensors and then analyzes the return signals. The engine sensors supply the PCM with specific information, in the form of electrical signals, to determine engine operating conditions.

*******In the event of a sensor or actuator failure, the PCM initiates an alternative strategy called Failure Mode Effects Management (FMEM) to allow the vehicle to maintain driveability. In the event of PCM failure, Hardware Limited Operation Strategy (HLOS) will be activated. HLOS is a system of alternate circuitry that provides minimal engine operation if the PCM fails. During HLOS, all self-test function will stop and system will be controlled by electronic hardware.
Malfunction Indicator Light (MIL) will remain on whenever FMEM or HLOS is in operation. FMEM and HLOS substitute a fixed signal and continue to monitor system failure. If signal(s) return to within operating limits, PCM will resume normal operation.*****
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
BRIGRANT
  • MEMBER
  • 3 POSTS
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 131,113 MILES
Engine Performance problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 131113 miles

When I come out to my car in the morning I start my car and it just makes a chug chug chug chug chug chug and then starts. Then if I turn off my car and do it again it doesnt take as long after about the fourth time it starts right away. But after leaving the car for 1 hour maybe less after all that it then starts back at square one like in the morning. Im thinking starter or something but then again if I knew anything I wouldnt be asking. Any ideas?
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
When you say chug chug chug. Do you mean it sounds really slow at starting? Really slow to turn over. This could be a lazy starter?
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
BRIGRANT
  • MEMBER
  • 3 POSTS
Yeah its slow to start thats what I was thinking but I was not sure if it was alternator or starter.
Thanks for the help
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Yeah if it's slow starting and gradually building up it is the starter. No problem buddy any time
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
CAFFINE27
  • MEMBER
  • 2 POSTS
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 104,000 MILES
Engine Performance problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 104000 miles

my 99 ford explorer has become extremely loud. While I drive I can barley hear the radio, and it is slow to accelerate. What could be wrong?
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
JEEPFAN
  • MECHANIC
  • 135 POSTS
My advice would be have the exhaust system checked to be that loud im thinking the exhaust pipe is loose or broken somewhere and if so your vehicle may not have adequate back pressure which could cause a lack of power
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
CAFFINE27
  • MEMBER
  • 2 POSTS
Yeah there is sort of a very loud sound coming from around the bottom of the engine where it would connect to the exhaust pipe. It sounds like one of those old muscle cars and it was never that loud. Also the gass mileage has plummeted so maybe that is it
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
JEEPFAN
  • MECHANIC
  • 135 POSTS
Yeah it would affect the mpg as well.
Its probably only gonna need some gaskets just ask around from people you know to try and find a good reputAble muffler shop
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
EGGCOGNITO
  • MEMBER
  • 2 POSTS
  • 1999 FORD EXPLORER
1999 Ford Explorer Four Wheel Drive Automatic

When I come to a rolling stop, the rear end seems to bog down(lower). And now, at times when I take off it seems to do the same. Any Ideas?
Also, I can't get the chime(like leaving your lights on) but they aren't to stop going off. Drives me nuts!
Any ideas?
Thanks all
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Does it feel like the brakes are sticking or grabbing? As far as the chimes, have the body control module checked.

Let me know what you find.

Joe
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
EGGCOGNITO
  • MEMBER
  • 2 POSTS
No. Brakes work fine. It happens after I stop
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
HARRICHARAN
  • MEMBER
  • 1 POST
  • 1999 FORD EXPLORER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 139 MILES
Shakes or Wobbles problem
1999 Ford Explorer 4 cyl Two Wheel Drive Automatic 139 miles

My 1999 Ford explorer when I come to a complete stop it start to lose power and I open the hood I hear a noise like a vacum line like if is was escaping air any suggest?
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
You have a 6 cylinder more likely.

Is the check engine light on?

You need to narrow down the air rushing noise source. Sometimes using a little carb cleaner can help if there is a vacuum leak as it will get sucked into the engine and raise the idle.
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 1999 FORD EXPLORER
  • 83,123 MILES
Many times I tryed to get a answer never got the right one, problem is my autolamps, no power, all other lights work
went to parts store asked for a fuse or a relay nothing listed all the experts I went on line told me to test it I did the way as I was told
nothing, can it be a fuse in the fuse under the hood or inside the car?
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You mean teh foglamps or drl? There are 3 fuses in battery junction box as well as 3 in central junction box, there are 2 relays behind center dash. There is alos a module for eht drl at the left front of engine compt. However check fuse 8 &27 in fuse junction panel for drl. There are no relays for drl if fuses are good an dnot getting poer then module is bad
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
KEVIN KASTEN
  • MEMBER
  • 1 POST
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 127,000 MILES
Engine Performance problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 127000 miles

carr is fine while idling when put in gear misses badly new plug and wires were put in. No difference.
Computor reads cyclinder 301 02 03 have problems.
What do you suggest.
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Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
RICKMAR
  • MECHANIC
  • 170 POSTS
Hi Kevin;
Your OBD codes are P0301, P0302, P0303
When you put in new plugs and wires did you also put in (2) new coil packs?

Common Problems that Trigger P0301-P0302-P0303
Incorrect Ignition Timing
Vacuum Leak(s)
Low or Weak Fuel Pressure
Improperly functioning EGR System
Defective Mass Air Flow Sensor
Defective Crankshaft and/or Camshaft Sensor
Defective Throttle Position Sensor
Mechanical Engine Problems i.E Low Compression, Leaking Head Gasket or Valve Problems

Polluting Gases Expelled:
HC’S †Hydrocarbons -> unburned droplets of raw fuel that smell, effect breathing and color the sky
CO †Carbon Monoxide -> partially burned fuel that is an odorless but deadly poisonous gas
NOX †Oxides of Nitrogen -> gases that contribute to the creation of smog.

127,000 miles is pretty low so I would tend to eliminate the following from the common problems in this order:
(1) Leaking Head Gasket, Low Compression, or Valve Problems.
(2) DefectiveThrottle Position Sensor
(3) Defective Crankshaft and/or Camshaft Sensor
(4) Low or Weak Fuel Pressure

I would check the following in this order:
(1) Incorrect Ignition Timing
(2) Improperly functioning EGR System
**(Hint) a bad DPFE Sensor (Delta Pressure Feedback EGR) are known to toast up and effect the EGR System.
(3) Defective Mass Air Flow Sensor.

I have a feeling that it is the "D.P.F.E." Sensor causing a Improperly functioning EGR System.
The little S.O.B's are very well known to toast up.
If it were me I would fiddle with the D.P.F.E. First.
D.P.F.E.'S explained:

If you have a "Junk Yard" or Auto Salvage near you I would poke around one and see if you can find another D.P.F.E. Sensor for short or zero money, they are a small and made of plastic. Grab a "Mass Air Flow" Sensor for giggles too.
The M.A.F. Sensor is in your air flow system leading to your air filter box. It will say "Max Air Flow" right on it.

You are looking for a "D.P.F.E -4 Sensor"
Exact part numbers are any of the following:
YF1E-9J460AC
YF1E-9J460AD

2F1E-9J460AB

4U7E-9J460AA
They are around $40.00 from the dealer.
Get a good quality D.P.F.E. Sensor - The cheapo's will give you headaches.

I hope the information helped.
Good Luck;
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