|
12-05-2012, 05:51 PM
|
|
Ford Ranger Driver
|
|
Join Date: Mar 2012
Posts: 1,529
|
|
So lately when I'm driving my ranger over city roads with bumps the truck is like cutting out real quick then catches itself feels like the engine stalls a little . Electronics work when this happens , if I am just in gear rolling down a hill with no gas I can watch the rpm's go down then jump back up. If I'm out of gear it does the same thing the rmps go down it drops then raises to go back down again.
Also I feel like my mpgs have dropped significantly
I've checked all grounds , wires that could be loose I'm lost at this point
__________________
1993 Ranger XLT
4.0L rmp reman
4x4 5 speed
5.5 inch superlift suspension
33 inch goodyear wrangler duratrax
One bad ass audio system
|
Register and never see these ads again. |
|
12-05-2012, 05:56 PM
|
|
ford dealer parts guy
|
|
Join Date: Apr 2011
Posts: 20,938
|
|
Quote:
Originally Posted by mbxmitch
So lately when I'm driving my ranger over city roads with bumps the truck is like cutting out real quick then catches itself feels like the engine stalls a little . Electronics work when this happens , if I am just in gear rolling down a hill with no gas I can watch the rpm's go down then jump back up. If I'm out of gear it does the same thing the rmps go down it drops then raises to go back down again.
Also I feel like my mpgs have dropped significantly
I've checked all grounds , wires that could be loose I'm lost at this point
|
Check the inertia switch
Sent from my HTC One X using FRF App
__________________
2021 F150 5.0 Screw
Past:18 F150 2.7, 16 F150 5.0, 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0
Master Certified Ford Parts / Warranty Admin
|
12-05-2012, 06:47 PM
|
|
Ford Ranger Driver
|
|
Join Date: Mar 2012
Posts: 1,529
|
|
I read that somewhere what is that?
__________________
1993 Ranger XLT
4.0L rmp reman
4x4 5 speed
5.5 inch superlift suspension
33 inch goodyear wrangler duratrax
One bad ass audio system
|
12-05-2012, 06:47 PM
|
|
ford dealer parts guy
|
|
Join Date: Apr 2011
Posts: 20,938
|
|
Quote:
Originally Posted by mbxmitch
I read that somewhere what is that?
|
Passenger kick panel
Sent from my HTC One X using FRF App
__________________
2021 F150 5.0 Screw
Past:18 F150 2.7, 16 F150 5.0, 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0
Master Certified Ford Parts / Warranty Admin
|
|
|
|
12-06-2012, 12:10 AM
|
Ford Tough
|
|
Join Date: Oct 2012
Posts: 260
|
|
Re: Engine cuts out (lurches) over bumps
Quote:
Originally Posted by mbxmitch
I read that somewhere what is that?
|
The inertia switch is a ball that runs a kill switch and it will kill the electric fuel pump in case of a sudden abrupt halt, hit or tough jarring (extreme bumping). It could be acting up.
Peel up the carpet on the passenger side of your truck and on the floor along the firewall will be a small plastic rectangle, i think it takes a 1/4 inch socket or smaller to remove the 2 screws. Bench test the switch with a volt meter checking for flow through current. while slowly moving it back and forth, does the current stop or fluctuate? bang it hard to activate the ball. did it kill it? that is the only ways I can think of as to how to test the switch.
to reset the ball, just push in the plunger and it resets the switch.
anyone who has done an electric fuel pump to feed a carb from a manual pump should wire in an inertia switch to kill the gas from pumping in case of a crash, or roll over to stop the fuel from leaking everywhere.
Last edited by 78_pinto; 12-06-2012 at 07:41 AM.
|
|
|
|
12-06-2012, 04:21 AM
|
|
Blinded by the light
|
|
Join Date: Sep 2009
Posts: 7,674
|
|
Re: Engine cuts out (lurches) over bumps
Loose cables on the battery will do this too.
|
12-06-2012, 07:30 AM
|
|
Ford Ranger Driver
|
|
Join Date: Mar 2012
Posts: 1,529
|
|
Quote:
Originally Posted by FireRanger
Loose cables on the battery will do this too.
|
I assumed that's what it was bc my negative lead was loose but I replaced and problem continued
__________________
1993 Ranger XLT
4.0L rmp reman
4x4 5 speed
5.5 inch superlift suspension
33 inch goodyear wrangler duratrax
One bad ass audio system
|
12-08-2012, 05:48 PM
|
|
Ford Ranger Driver
|
|
Join Date: Mar 2012
Posts: 1,529
|
|
Might have figured it out . Fuse under the hood was bouncing in and out
__________________
1993 Ranger XLT
4.0L rmp reman
4x4 5 speed
5.5 inch superlift suspension
33 inch goodyear wrangler duratrax
One bad ass audio system
|
12-08-2012, 05:50 PM
|
|
ford dealer parts guy
|
|
Join Date: Apr 2011
Posts: 20,938
|
|
Quote:
Originally Posted by mbxmitch
Might have figured it out . Fuse under the hood was bouncing in and out
|
That'll do it
Sent from my HTC One X using FRF App
__________________
2021 F150 5.0 Screw
Past:18 F150 2.7, 16 F150 5.0, 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0
Master Certified Ford Parts / Warranty Admin
|
12-08-2012, 06:24 PM
|
|
Ford Ranger Driver
|
|
Join Date: Mar 2012
Posts: 1,529
|
|
Been driving all day has not done it once. My buddy happened to come a crossed it when he was digging around under my hood today
__________________
1993 Ranger XLT
4.0L rmp reman
4x4 5 speed
5.5 inch superlift suspension
33 inch goodyear wrangler duratrax
One bad ass audio system
|
12-08-2012, 06:27 PM
|
Ford Tough
|
|
Join Date: Oct 2012
Posts: 260
|
|
Re: Engine cuts out (lurches) over bumps
makes more sense ... an inertia switch problem would be from a good whack and after it screwed up you would have needed to more than likely reset it and had your front end worked on(crashed). they are a hardy piece of equipment. glad you figured it out.
|
12-08-2012, 06:34 PM
|
|
Ford Ranger Driver
|
|
Join Date: Mar 2012
Posts: 1,529
|
|
Quote:
Originally Posted by 78_pinto
makes more sense ... an inertia switch problem would be from a good whack and after it screwed up you would have needed to more than likely reset it and had your front end worked on(crashed). they are a hardy piece of equipment. glad you figured it out.
|
Thanks for al the advice though
__________________
1993 Ranger XLT
4.0L rmp reman
4x4 5 speed
5.5 inch superlift suspension
33 inch goodyear wrangler duratrax
One bad ass audio system
|
12-08-2012, 06:49 PM
|
|
Blinded by the light
|
|
Join Date: Sep 2009
Posts: 7,674
|
|
Re: Engine cuts out (lurches) over bumps
Ya that would definitely do it.
|
Thread Tools |
Search this Thread |
|
|
|
|