Engine power loss and cut off when put in gear

Tiny
PEARLHICKORY
  • 1999 FORD EXPLORER
  • 4.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES

99, 4.0 SOHC, engine idles ok, when placed in gear sputters then cuts off, starts up again fine, then repeats over again, REPLACED, intake manifold seals, maf, iac, tops, egr, still cutting off, any ideas, cats maybe?

Do you
have the same problem?
Yes
No
Wednesday, October 29th, 2014 AT 7:49 AM

39 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,376 POSTS

Did you get any trouble codes? Also, the converters could be an issue. Try removing the O2 sensors and see if it makes any difference. Also, you should check intake manifold vacuum pressure. You may have a leak somewhere.

Was this
answer
helpful?
Yes
No
Wednesday, October 29th, 2014 AT 8:43 AM
Tiny
PEARLHICKORY
  • MEMBER

Do have 02 trbl codes, I've checked for leaks, found couple, repaired issue, going to do smoke test next, already got car up in air to take cats off. See if it runs, also EVERY. Code from trans is present.

Was this
answer
helpful?
Yes
No
Wednesday, October 29th, 2014 AT 9:56 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,376 POSTS

Trans codes? All of them? Check out this guide

https://www.2carpros.com/articles/engine-has-low-power-output

Was this
answer
helpful?
Yes
No
Wednesday, October 29th, 2014 AT 6:45 PM
Tiny
PEARLHICKORY
  • MEMBER

Yes it has all sensor codes lit up on scanner, but I think I hope I found my problem, think cats are blocked, pulled 1 02 sensor car stayed running in drive and reverse.

Was this
answer
helpful?
Yes
No
Wednesday, October 29th, 2014 AT 7:04 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,376 POSTS

That sounds like it could be the issue.

Was this
answer
helpful?
Yes
No
Thursday, October 30th, 2014 AT 5:33 AM
Tiny
PEARLHICKORY
  • MEMBER

Well if I could burn it I would, LETS see, after all ive done to it,

I took off the cats, and still cutting, off when put in drive, heres all codes, present, ====
P 1747, EPC SOLENOID ===
PO 743 TORQUE CONVERTER CLUTCH ===
PO 750 SHIFT SOLENOID A
PO 755 """""""""""""""""""""" B
PO 760 """""""""""""""""""""" C
PO 765 """""""""""""""""""""" D
P 1451 EVAP
P1409 EGR

iVE ALREADY REPLACED EGR, MAF, IAC, TPS, CHECKED CATS FOR BLOCKAGE ! ANY OTHER IDEAS, MAYBE TRANS MODULE MAKING ENGINE CUT OFF, HELPPP, THANKS.

Was this
answer
helpful?
Yes
No
Thursday, October 30th, 2014 AT 1:24 PM
Tiny
PEARLHICKORY
  • MEMBER

Hey guys good morning any other ideas on my car cutting off. Need help thanks.

Was this
answer
helpful?
Yes
No
Friday, October 31st, 2014 AT 6:28 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,376 POSTS

I think the TCC is an issue. If the transmission isn't fully disengaged when you put it in gear, it would be like letting the clutch out with the brake on with a manual transmission.

Was this
answer
helpful?
Yes
No
Friday, October 31st, 2014 AT 8:38 AM
Tiny
ALEXANDER KäMäRä
  • 1999 FORD EXPLORER
  • 4.0L
  • V6
  • 4WD
  • AUTOMATIC
  • 170,000 MILES

I was driving on highway when all of a sudden felt loss of power, car started to stutter, check engine came on. At home I have checked intake manifold for leaks none found, checked EGR works fine (i have closed it just to be sure), PCV is fine, all hoses are okay. Tried to find leaks with carburetor cleaner none found. I suspect o-rings or a faulty o2 sensor. Is there some way to test o2 sensor? Or check if it is the o-rings without taking apart the manifold?

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
MHPAUTOS
  • EXPERT
  • 31,762 POSTS

May be a faulty injector or a low fuel pressure problem, a blocked fuel filter can do this, as for the O2 sensor, a live data read will show the sensor electrical activity, The greater the difference, the higher the voltage reading. An oxygen sensor will typically generate up to about 0.9 volts when the fuel mixture is rich and there is little unburned oxygen in the exhaust. When the mixture is lean, the sensor's output voltage will drop down to about 0.1 volts. If the readings are above 1 V or zero the sensor is not working.

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
BARSTOW85
  • 1999 FORD EXPLORER

Transmission problem
1999 Ford Explorer V8 All Wheel Drive Automatic 106000 miles

I've noticed it most when I am going uphill with low gas and the vehicle seems to stall a second, like the transmission is slipping maybe. I also had a similiar problem when my fuel filter was going bad. If it's not the transmission, I think I may have something in my gas tank that is choked through the filter when it reaches the bottom of the tank. But it does have a lot of miles on it so maybe it's time to tune up the transmission. I'm open to suggestions though.

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
MERLIN2021
  • EXPERT
  • 17,522 POSTS

If you run it with less than 1/4th of a tank, you might want to have the fuel pressure tested.

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
BADSTAR
  • 1999 FORD EXPLORER

Engine Performance problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 132000 miles

I had my explorer checked out but they couldn't find any thing wrong. The test that they done all good. But still idles ruff and runs ruff, has no power. It did have a code 1151 but now it is not showing up. They said that it might be the throttle body but said he was not sure that was it said just a guessing. Any idles on what it might be?

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,376 POSTS

Did you check for vacuum leaks? Has the catalytic converter been checked?

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
BADSTAR
  • MEMBER

Yes the vacuum checked, but how to check the cadillac converter? Thanks.

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,376 POSTS

The converter can be checked a couple ways. First, when the engine is hot and still running, often times, a converter will get red hot and glow. Other than that, you can hear restriction. Finally, they make a gauge that screws into the O2 sensor ports to measure back pressure.

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
RMOORE09
  • 1999 FORD EXPLORER
  • 205,000 MILES

Hello, My intake manifold is leaking. The problem has gotten worse such that my check engine light is on saying that Bank 2 and Bank 1 too lean. The explorer runs great and still gets around 20 mpg. I can tell it has lost some power and it seems to run better on 91 octane than 87. It does start up rough if you let it sit for like a few minutes. Sometimes I hear a knocking like sound coming from the left side of the block. It sometimes is really loud or you wont hear it at all. As I said it drives fine. How worse do you think this could get? Do you recommend repair right now?

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
  • 25,483 POSTS

It will not stay the same. It will get worse and you could do more damage.
Have you got a bid to have it fixed?

The knock is not good either. You need to let a shop listen to it and tell you there opinion.

The longer you wait, the worse it will get.

Roy

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
DAVID8172
  • 1999 FORD EXPLORER

Engine Performance problem
1999 Ford Explorer 6 cyl Four Wheel Drive Automatic 140000 miles

I have a 1999 explorer. In park it runs just fine when I put it in drive it has no power after I pass 1000 on the tac. I put it back in nutral or park and its fine.
Took it to ford and they said my cats were plugged and wanted $2,500 to change. I went and had them cut out and the problem still exists. Its getting codes for the trans but I just don't know where to look. Any help with this would be greatly appreciated. My email is hooligan632@yahoo. Com

David
The trans does not seem to have any mechanical problems at all. When I put the truck in drive I can drive it but I have to keep the rpms under 1,100 or if I go above that it acts just like its running out of gas. Once going I can cruise at 65 mph with no problems until I press the gas petal down and again it acts like its run out of gas as soon as I release the petal everything is fine. Its some type of senser that only acts up when in gear and the excellerator is pushed beyond 1,100 rpms

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)
Tiny
MERLIN2021
  • EXPERT
  • 17,522 POSTS

Is the code for the torque converter clutch solinoid?
A tranny shop is where to go not Ford!
TORQUE CONVERTOR ENGAGEMENT TEST Perform QUICK TEST and record DTCs. Repair all DTCs before performing the following test: 1. Connect tachometer. Warm engine to normal operating temperature. Ensure transmission fluid level is correct. Maintain about 50 MPH. Release throttle for about 2 seconds, then reapply to previous setting. Engine RPM should increase when throttle is released and decrease in about 5 seconds after throttle is reapplied. Go to next step. 2. Maintain about 50 MPH. Apply light pressure to brake pedal so that brake lights operate. Engine RPM should increase as brake pedal is tapped, and then decrease about 5 seconds after pedal is released. If torque converter clutch operation is not as specified, see TCC operation concerns listed in
TCC ENGAGEMENT TEST Connect tachometer. Warm engine to normal operating temperature. Ensure transmission fluid level is correct. Drive vehicle and maintain about 50 MPH. Release throttle for about 2 seconds, then reapply to previous setting. Engine RPM should increase when throttle is released and decrease in about 5 seconds after throttle is reapplied. If torque converter clutch operation is not as specified

Was this
answer
helpful?
Yes
No
Wednesday, November 1st, 2017 AT 8:41 PM (Merged)

Please login or register to post a reply.

Recommended Guides