If it's not the IAC or TPS...what could it be?

GearHeadJLM · Feb 07 2009, 09:37pm

Vehicle: 2004 Ranger XLT 4x4 4.0L SOHC Ext Cab Step side 5 speed w/129k

What's done to it: Flowmaster Catback, K&N Air Filter

No Check Engine Light (CEL)

Here's the issue: Say I am cruising or just trying to shift and the RPM is at about 1800-2200, When I push in the clutch (and let off the gas) the RPM's will jump up to around 3200 and hold for about 2 seconds, then drop to around 2500 for a second or so, then 1500 and then finally down to 800-900 (by this time I'm stopped). Speed, engine temp, and outside temp seem to have no effect on it.

I have tried to replace the IAC and TPS. I tried taking the Mass Airflow Sensor out and cleaning it with rubbing alcohol. I put new plugs in, and it didn't make a difference.

I am questioning EGR Valve, but am most expecting a hard to find vacuum leak. I tried spraying Ether (starting fluid) around vacuum lines and intake to see if I noticed a difference, and didn't.

Has anybody else had this issue? What else could it be? How else can I diagnose and find a vacuum leak?

Any help would be appreciated.

Here's some pics:

Shadow Edge · Feb 07 2009, 09:47pm

There's your problem right there in the last photo ... that engine bay is way too clean

!

But in all seriousness, I'm not completely sure about your problem but if your engine RPMs spike when the clutch is released and the accelerator is depressed it would seem like there is an electrical issue. I don't know, if you've already checked said components, I'd be weary of you finding anything wrong aside from something like a sensor.

shagmail · Feb 08 2009, 04:35pm

Sounds like TSB 05510. I had to get someone with alldata to get the spcific tsb info.

I had the same problem, TSB 05510 fixed mine. The dealer had to reload the computer.

Shag

PW01 · Feb 08 2009, 06:57pm

A faulty/worn EGR made mine run like poop

mxracer652 · Feb 08 2009, 08:13pm

It is NOT the egr.
Shag is right.

GearHeadJLM · Feb 08 2009, 08:29pm

Quote:

Posted by shagmail

Sounds like TSB 05510. I had to get someone with alldata to get the spcific tsb info.

I had the same problem, TSB 05510 fixed mine. The dealer had to reload the computer.

Shag

Okay, so basically I need to go to Autozone so they can tell me what TSB 05510 means? What do you mean the dealer had to reload the computer?

I haven't replaced the PCV yet, and will probably try that first. I don't know why, but the last couple times I have driven my truck it has done it less. But still doing it here and there.

Thanks for the help.

mxracer652 · Feb 08 2009, 09:30pm

AutoZone isn't going to have Ford tech data, go to a Ford garage.
Reload the computer = reflash it. Just like a USB stick. Be sure to throw a fit so they do it for free.

The PCV is a waste of $$. Tell your wife that's what you're doing & skip over to a bud's house with a 12 pack & watch a hockey game. Both will equally help your truck run better, but the latter is more fun.

GearHeadJLM · Feb 08 2009, 10:12pm

Quote:

Posted by mxracer652

AutoZone isn't going to have Ford tech data, go to a Ford garage.
Reload the computer = reflash it. Just like a USB stick. Be sure to throw a fit so they do it for free.

The PCV is a waste of $$. Tell your wife that's what you're doing & skip over to a bud's house with a 12 pack & watch a hockey game. Both will equally help your truck run better, but the latter is more fun.

I see.

Okay, so the previous post said find somebody with Alldata, which would be Autozone. Also, "reflashing my computer" wouldn't disconnecting the battery for ten minutes reset it?

Ranger0n20sss · Feb 08 2009, 10:25pm

dang that is one clean ass truck, the color looks really good... have u check to see maybe if it could be ur air filter plugged?

GearHeadJLM · Feb 09 2009, 03:44am

Quote:

Posted by Ranger0n20sss

dang that is one clean ass truck, the color looks really good... have u check to see maybe if it could be ur air filter plugged?

Thank you, and it's a K&N and I just cleaned it a long with the MAF. I did notice that it is better but still there

mxracer652 · Feb 09 2009, 07:43am

Quote:

Posted by Ranger0n20sss

have u check to see maybe if it could be ur air filter plugged?

This statement proves you have absolutely no idea how a vehicle works, so why do you feel the need to give out stupid information? You were also too lazy to even bother researching the symptoms & information.

Quote:

Posted by GearHeadJLM

Also, "reflashing my computer" wouldn't disconnecting the battery for ten minutes reset it?

No, for the same reason removing a USB stick from the port doesn't refresh the data contained.

You'll have to go to a Ford garage to get the updated bin flashed, so there's not really much sense in going to AZ.......

97ranger xlt · Feb 09 2009, 08:39am

a bad pcv will cause a high idle and not throw a code.

GearHeadJLM · Feb 09 2009, 09:06am

Quote:

Posted by mxracer652

This statement proves you have absolutely no idea how a vehicle works, so why do you feel the need to give out stupid information? You were also too lazy to even bother researching the symptoms & information.

No, for the same reason removing a USB stick from the port doesn't refresh the data contained.

You'll have to go to a Ford garage to get the updated bin flashed, so there's not really much sense in going to AZ.......

mxracer652,

I appreciate your advice on the situation. However, putting down others advice is not needed. A bad PCV could cause this issue, and I am sure if the airfilter was clogged AND I had a vacuum leak, a symptom such as mine COULD be possible. Likewise with a EGR sticking or not closing all the way. In my particular situation I am not thinking that it is the PCV or EGR, and am sure that the recommended TSB is probably my issue. Please feel free to offer advice on these boards, but do not belittle other people or there advice.

*98blownranger* · Feb 09 2009, 05:59pm

you replaced you TPS did you check the voltage?

GearHeadJLM · Feb 14 2009, 08:50pm

Took it to the dealer, the TSB mentioned above was the issue. Computer needed reprogrammed.

Thanks for all the help.

Ddavis91 · Nov 02 2009, 02:01pm

little late on this but i'm pretty sure its a speed sensor on the side of your tranny...i have the same problem and i just bought one today....bout to go put it on....i'll let u know what happens!

*98blownranger* · Nov 02 2009, 04:59pm

wow if you would of read the last post you would of read that he fixed the problem and that your idea of what was wrong would of been a thing to look at but was not the problem

Fruckner · Nov 02 2009, 05:59pm

actually yes disconnecting the battery for 5-10 minutes would have the same result as taking it to the dealer but looks like ya got the problem solved

Fruckner · Nov 02 2009, 06:00pm

wow old thread guess i need to read that first lol my bad

Ddavis91 · Nov 03 2009, 12:02am

Sorry hahaha...man that makes me look really stupid hahaha...i didnt even see that!...so yeah...anyways...i replaced it....and it didnt do anything...i dont have any o2 sensors...the tard i bought it from took them and the cat off...i got one to put on...i just gotta drill a hole and weld on a nut...guess that might be why it does this but i dunno...what do yall think?

Feb 07 2009, 09:37pm	#1
GearHeadJLM Semper Fi Join Date: Mar 2004 Location: Camp Lejeune, NC Posts: 1,118 Friends: (1)	If it's not the IAC or TPS...what could it be? Vehicle: 2004 Ranger XLT 4x4 4.0L SOHC Ext Cab Step side 5 speed w/129k What's done to it: Flowmaster Catback, K&N Air Filter No Check Engine Light (CEL) Here's the issue: Say I am cruising or just trying to shift and the RPM is at about 1800-2200, When I push in the clutch (and let off the gas) the RPM's will jump up to around 3200 and hold for about 2 seconds, then drop to around 2500 for a second or so, then 1500 and then finally down to 800-900 (by this time I'm stopped). Speed, engine temp, and outside temp seem to have no effect on it. I have tried to replace the IAC and TPS. I tried taking the Mass Airflow Sensor out and cleaning it with rubbing alcohol. I put new plugs in, and it didn't make a difference. I am questioning EGR Valve, but am most expecting a hard to find vacuum leak. I tried spraying Ether (starting fluid) around vacuum lines and intake to see if I noticed a difference, and didn't. Has anybody else had this issue? What else could it be? How else can I diagnose and find a vacuum leak? Any help would be appreciated. Here's some pics: __________________ Proud to live under the RED WHITE AND BLUE!

Feb 07 2009, 09:47pm	#2
Shadow Edge Mountain West Member Join Date: Apr 2006 Location: Albuquerque, NM Posts: 2,125 Friends: (11)	There's your problem right there in the last photo ... that engine bay is way too clean ! But in all seriousness, I'm not completely sure about your problem but if your engine RPMs spike when the clutch is released and the accelerator is depressed it would seem like there is an electrical issue. I don't know, if you've already checked said components, I'd be weary of you finding anything wrong aside from something like a sensor. __________________ Dustin - Albuquerque, New Mexico United States Air Force Veteran - Staff Sergeant (OIF/OEF) 2005 Ranger Edge Regular Cab / 3.0 V6 Manual Transmission / Dark Shadow Grey / Series 297 15" Wheels By Unique Wheel / K&N Cold Air Intake / Tuned SCT X-Calibrator 2 From Bamachips / Figerglass ARE LSII Tonneau Cover / 32X11.50 BF Goodrich All-Terrain Tires / Flowmaster Delta Flow 40 Series Dual Exhaust [Video Clip I] [Video Clip II] [Photos] [More Photos And Videos]

Feb 08 2009, 06:57pm	#4
PW01 Member Join Date: Jun 2003 Location: Louisville, KY Posts: 457 Friends: (0)	A faulty/worn EGR made mine run like poop __________________ -John Harvest Gold 2001 Ford Ranger XLT 4x4, Off Road package, SOHC 4.0 automatic, Line-X bed liner and step rails, Silverstar bulbs, Alpine CDA-7894, Alpine R series 6.5 components [front], Alpine R series 5x7's [rear], "hard wired" Passport 7500s radar detector, 35% tint on sides and top of windshield, Undercover tonneau, Rancho RSX shocks, Clifford Matrix RS2 remote remote start/alarm, BF Goodrich All Terrain T/A ko tires, blinker mod, 06 emblems, clear corners, Wet Okole seat covers

Feb 08 2009, 08:13pm	#5
mxracer652 NINJA Join Date: Dec 2001 Location: Pittsburgh, PA Posts: 1,004 Friends: (1)	It is NOT the egr. Shag is right. __________________ 302/362 , TFS TEA TW-R, T&D shafts, Pro-Systems HP950 for E85, custom tight lash solid roller, TKO600, 4 link Engine design by Camshaft Innovations

Feb 08 2009, 09:30pm	#7
mxracer652 NINJA Join Date: Dec 2001 Location: Pittsburgh, PA Posts: 1,004 Friends: (1)	AutoZone isn't going to have Ford tech data, go to a Ford garage. Reload the computer = reflash it. Just like a USB stick. Be sure to throw a fit so they do it for free. The PCV is a waste of $$. Tell your wife that's what you're doing & skip over to a bud's house with a 12 pack & watch a hockey game. Both will equally help your truck run better, but the latter is more fun. __________________ 302/362 , TFS TEA TW-R, T&D shafts, Pro-Systems HP950 for E85, custom tight lash solid roller, TKO600, 4 link Engine design by Camshaft Innovations


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Feb 08 2009, 04:35pm	#3
shagmail Member Join Date: Jul 2005 Posts: 451 Friends: (0)	Sounds like TSB 05510. I had to get someone with alldata to get the spcific tsb info. I had the same problem, TSB 05510 fixed mine. The dealer had to reload the computer. Shag

Feb 09 2009, 08:39am	#12
97ranger xlt ranger driver Join Date: Dec 2006 Location: Mass. Posts: 129 Friends: (0)	a bad pcv will cause a high idle and not throw a code. __________________ '97 ranger xlt super cab 2.3l 5spd 127k send lawyers, guns, and money....

Feb 09 2009, 05:59pm	#14
98blownranger Custom KeyChain R Me Join Date: Sep 2002 Location: manitowoc WI Posts: 2,139 Friends: (5)	you replaced you TPS did you check the voltage? __________________ 94 waiting on new frame and heavy fab work. still sitting 98-lots of go and plenty of show. world of wheel 3 time champ- best street machine supercharged,422cam,rear end narrowed, tubbed, painted inside out side bottom side and motor. if not paint them billet or chrome Custom billet work--billet side steps, MAS adapter billet door sills

Feb 14 2009, 08:50pm	#15
GearHeadJLM Semper Fi Join Date: Mar 2004 Location: Camp Lejeune, NC Posts: 1,118 Friends: (1)	Took it to the dealer, the TSB mentioned above was the issue. Computer needed reprogrammed. Thanks for all the help. __________________ Proud to live under the RED WHITE AND BLUE!

Nov 02 2009, 02:01pm	#16
Ddavis91 95 B2300 Join Date: Sep 2009 Location: Albany, GA Posts: 35 Friends: (2)	little late on this but i'm pretty sure its a speed sensor on the side of your tranny...i have the same problem and i just bought one today....bout to go put it on....i'll let u know what happens!

Nov 02 2009, 04:59pm	#17
98blownranger Custom KeyChain R Me Join Date: Sep 2002 Location: manitowoc WI Posts: 2,139 Friends: (5)	wow if you would of read the last post you would of read that he fixed the problem and that your idea of what was wrong would of been a thing to look at but was not the problem __________________ 94 waiting on new frame and heavy fab work. still sitting 98-lots of go and plenty of show. world of wheel 3 time champ- best street machine supercharged,422cam,rear end narrowed, tubbed, painted inside out side bottom side and motor. if not paint them billet or chrome Custom billet work--billet side steps, MAS adapter billet door sills

Nov 02 2009, 05:59pm	#18
Fruckner 97 stacked ranger Join Date: Aug 2009 Location: Northeast Pennsylvania Posts: 73 Friends: (0)	actually yes disconnecting the battery for 5-10 minutes would have the same result as taking it to the dealer but looks like ya got the problem solved

Nov 02 2009, 06:00pm	#19
Fruckner 97 stacked ranger Join Date: Aug 2009 Location: Northeast Pennsylvania Posts: 73 Friends: (0)	wow old thread guess i need to read that first lol my bad

Nov 03 2009, 12:02am	#20
Ddavis91 95 B2300 Join Date: Sep 2009 Location: Albany, GA Posts: 35 Friends: (2)	Sorry hahaha...man that makes me look really stupid hahaha...i didnt even see that!...so yeah...anyways...i replaced it....and it didnt do anything...i dont have any o2 sensors...the tard i bought it from took them and the cat off...i got one to put on...i just gotta drill a hole and weld on a nut...guess that might be why it does this but i dunno...what do yall think?