|
|
|
|
06-09-2015, 01:20 PM
|
Learning to use the forums
|
|
Join Date: Jun 2015
Posts: 4
|
|
03 ranger 3.0 miss under acceleration.
hi.
my truck runs pretty well considering it has 185k. it has a rough idle, which may or may not contribute to this problem: it accelerates fine until it warms up, then if i step on it to pass someone or merge onto the interstate, it falls on its face somewhere between 3 and 4000 rpms. it does the same if i set the cruise on a 70 mph highway and encounter a hill. it seems to be getting worse. the plugs arent new, but i inspected all 6 and they look good. i also know they have around 20k highway miles on them. i tested the coil and found a bad post, so i replaced it with no change in the symptoms. i also just changed the fuel filter a couple days ago...no change there either. theres no engine light on, ive been thinking of unplugging a sensor just to turn it on so advance will scan the codes. so ive got a rough idle (which doesnt really bother me) and a hard stall under heavy acceleration when warm. any ideas?
|
|
|
|
Register and never see these ads again. |
|
06-09-2015, 06:14 PM
|
Ford Ranger Driver
|
|
Join Date: Oct 2011
Posts: 8,818
|
|
Ever change the camshaft synchronizer ?
|
06-10-2015, 03:34 AM
|
Learning to use the forums
|
|
Join Date: Jun 2015
Posts: 4
|
|
Re: 03 ranger 3.0 miss under acceleration.
Quote:
Originally Posted by GLH
Ever change the camshaft synchronizer ?
|
Not yet. I have no chirping at all. I was wondering if anyone ever had the synchronizer go bad and NOT chirp?
|
06-10-2015, 04:52 AM
|
|
Ford Ranger Driver
|
|
Join Date: Nov 2012
Posts: 3,162
|
|
Quote:
Originally Posted by nk321810
Not yet. I have no chirping at all. I was wondering if anyone ever had the synchronizer go bad and NOT chirp?
|
they would need a new engine
__________________
2000 Ford Ranger XLT 2WD ~ Work-In-Progress: 5.0 V8, M5R2 5 Speed, 4" Suspension Lift, 3" Body Lift, 33" BFG's, Bilstein 5100's, Comp Cams XE258HR-12, 24# Injectors, Torque Monster Headers, Flowmaster 70 Series,
1987 Ford F-150 Lariat 302 ~ Decommissioned
2006 Honda Civic LX 1.6 ~ Totaled
2011 Acura TSX K24 Base ~ Daily Driver, Supercharged 10PSI, 310whp 241lb/ft
|
|
|
|
06-10-2015, 05:04 AM
|
|
Ford Motor Co
|
|
Join Date: May 2015
Posts: 158
|
|
Quote:
Originally Posted by nk321810
hi. my truck runs pretty well considering it has 185k. it has a rough idle, which may or may not contribute to this problem: it accelerates fine until it warms up, then if i step on it to pass someone or merge onto the interstate, it falls on its face somewhere between 3 and 4000 rpms. it does the same if i set the cruise on a 70 mph highway and encounter a hill. it seems to be getting worse. the plugs arent new, but i inspected all 6 and they look good. i also know they have around 20k highway miles on them. i tested the coil and found a bad post, so i replaced it with no change in the symptoms. i also just changed the fuel filter a couple days ago...no change there either. theres no engine light on, ive been thinking of unplugging a sensor just to turn it on so advance will scan the codes. so ive got a rough idle (which doesnt really bother me) and a hard stall under heavy acceleration when warm. any ideas?
|
try your spark plug wires, had the same issue and it fixed it right away
__________________
Ford ranger 2001 edge, 3.0 vulcan, manual transmission, 3.73 open diff., 29" tires, 1.8 ratio Harland Sharp roller rockers, fender pod filter intake, MSD ignition wires, thrush glasspack, last catalytic comb delete, Electric fan, Nitrous Express wet kit 50 shot atm (soon to be supercharged, eaton m90, custom designed supercharger adapter intake by me )
|
|
|
|
06-10-2015, 07:25 AM
|
|
Ford Tough
|
|
Join Date: Aug 2013
Posts: 313
|
|
Is that the same as the cam position sensor?
__________________
1995 f-150 4x4 4.9 inline 6 5-speed
1996 Ranger 3.0 2wd Auto 4r44
2008 Ranger 4.0 4x4 Auto 5r55 extended cab
|
06-11-2015, 06:52 PM
|
Learning to use the forums
|
|
Join Date: Jun 2015
Posts: 4
|
|
Re: 03 ranger 3.0 miss under acceleration.
Quote:
Originally Posted by mrmoerder
Is that the same as the cam position sensor?
|
No. The cam pos sensor senses the cam synchronzer...at least if it works the same as the one on my 5.0 explorer did...
----------
Quote:
Originally Posted by oodannyboyoo
try your spark plug wires, had the same issue and it fixed it right away
|
Thanks I'll give it a shot when I get paid
----------
Quote:
Originally Posted by Vogenitz69
they would need a new engine
|
I was asking if anyone had the same symptoms as me (no chirp), changed the synchronizer, and solved the problem.
|
06-11-2015, 10:13 PM
|
Ford Ranger Driver
|
|
Join Date: Oct 2011
Posts: 8,818
|
|
With that many miles on the engine, the cam sync should be changed just as preventive maintenance.
|
06-25-2015, 09:02 PM
|
|
Ford Ranger Driver
|
|
Join Date: Dec 2012
Posts: 744
|
|
Re: 03 ranger 3.0 miss under acceleration.
i would say knock sensor cause if its missing. i would check it. that its located pass next to the oil pan far back bottom.
|
06-26-2015, 11:08 AM
|
|
Buy a Ford
|
|
Join Date: Jan 2015
Posts: 185
|
|
With no check engine light, I would check for leaks (air intake, vacuum, voltage). Some leaks may only show up when the motor is warm. Are you having oiling problems? Is there a rust colored dust around the cam sync?
__________________
Grace 3.0l 2wd xlt v8 swap
Blue. 3.0l 4wd xlt
|
06-29-2015, 11:44 AM
|
Learning to use the forums
|
|
Join Date: Jun 2015
Posts: 4
|
|
Re: 03 ranger 3.0 miss under acceleration.
update:
Changed the plugs and wires..didn't fix the problem, but got +1 mpg's afterwards.
Replaced the cam synchronizer and sensor...Voila! Fixed!
Sooo...the cam sync can be the problem even if it DOESN'T chirp.
Thanks all for the advice.
Side note: The cam sync Did squeak when I had it out in my hands, but never heard anything while it was in the truck. There was also rust dust in the cam sensor, but I attributed that to 185,000 miles of service.
Last edited by nk321810; 06-29-2015 at 11:52 AM.
Reason: more info
|
06-29-2015, 12:38 PM
|
Ford Ranger Driver
|
|
Join Date: Oct 2011
Posts: 8,818
|
|
Quote:
Originally Posted by nk321810
update: Changed the plugs and wires..didn't fix the problem, but got +1 mpg's afterwards. Replaced the cam synchronizer and sensor...Voila! Fixed! Sooo...the cam sync can be the problem even if it DOESN'T chirp. Thanks all for the advice. Side note: The cam sync Did squeak when I had it out in my hands, but never heard anything while it was in the truck. There was also rust dust in the cam sensor, but I attributed that to 185,000 miles of service.
|
Yep.
----------
Quote:
Originally Posted by GLH
With that many miles on the engine, the cam sync should be changed just as preventive maintenance.
|
Yep.
|
Thread Tools |
Search this Thread |
|
|
|
|