For all of those with the Power Surging Problem! Interesting Problem Found!

Texas_Ace · 06-20-2008, 05:14 PM

Ok, i have had the well known power suring when on the highway off and on for some time.

And today on my way home i just happened to figure out what it was. I was driving along fine and no surging. Then i went to change lanes and noticed that it was surging when i was but after i was done i looked at it and it had stopped.

So later I did the same thing. Well after the 3rd time i thought something is funny and turned on my blinkers, and sure enough my engine starts surging in tune to the blikers. I don't have a clue how this could be happening but it sure was doing it.

Turn the blinkers on = Instant Surging

Turn them off = Runs like normal

I am totally lost as to how this could even happen much less where to look. Any ideas?

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pfdaxe · 06-20-2008, 05:54 PM

Did you check the fluid in your turn signals? Mine was very low once and as soon as I topped it off....no more surging. I used Toyota OEM synthetic turn signal fluid.....

Texas_Ace · 06-20-2008, 05:56 PM

Quote:

Originally Posted by pfdaxe

Did you check the fluid in your turn signals? Mine was very low once and as soon as I topped it off....no more surging. I used Toyota OEM synthetic turn signal fluid.....

Hmm, i might need to do that, though i prefer this stuff:

Back on topic. lol

CJM · 06-20-2008, 06:04 PM

Electrical wiring upgrade...

Texas_Ace · 06-20-2008, 06:10 PM

Quote:

Originally Posted by CJM

Electrical wiring upgrade...

Yeah, but want to tell me how to go about that?

I have a few other eletrical querks that make no senes on mine as well from time to time.

CJM · 06-20-2008, 06:18 PM

Quote:

Originally Posted by Texas_Ace

Yeah, but want to tell me how to go about that?

I have a few other eletrical querks that make no senes on mine as well from time to time.

Big 3 wire, alt, battery and starter?

Texas_Ace · 06-20-2008, 07:20 PM

Quote:

Originally Posted by CJM

Big 3 wire, alt, battery and starter?

Yeah, i plan to do that when i install the SC but could that be causing this problem??

89dlx · 06-21-2008, 03:47 AM

I've seen some electrical problems appear from the little wire (from the NEG terminal to the inner fender) being broke.

Texas_Ace · 06-21-2008, 09:26 AM

Quote:

Originally Posted by 89dlx

I've seen some electrical problems appear from the little wire (from the NEG terminal to the inner fender) being broke.

I know that is not the problem as i already have a beefed up wire there (had some extra when i installed my radio and put it there). But i guess it not be tight or something, i will look at it.

Spence1016 · 06-21-2008, 11:11 AM

i have never noticed surging while driving, but i have at idle. in park, neutral, or drive as the rpms drop lower(to about 5 or 600) it automatically gives it gas and jumps to 1500. I think the ecu is telling it to do so because of power consumption so it raises the rpms to spin the alternator faster....or somethings broken =/

Texas_Ace · 06-21-2008, 11:14 AM

Well my idle is fine (a little low but fine).

When looking at my OBD scanner i noticed that my TPS is showing 12% = 15% when my foot is not on it at all, and only goes to a max of 75% when i am down to the floor.

Don't know if that is the way it is meant to be or if that could be a problem?

mt_goat · 06-21-2008, 01:59 PM

Quote:

Originally Posted by Texas_Ace

Well my idle is fine (a little low but fine).

When looking at my OBD scanner i noticed that my TPS is showing 12% = 15% when my foot is not on it at all, and only goes to a max of 75% when i am down to the floor.

Don't know if that is the way it is meant to be or if that could be a problem?

I'll check mine and see what its doing next time I drive it (maybe today).

Texas_Ace · 06-21-2008, 02:12 PM

Quote:

Originally Posted by mt_goat

I'll check mine and see what its doing next time I drive it (maybe today).

That would be GREAt, i have a few other problems that could be related to the TPS if it is bad.

mt_goat · 06-21-2008, 06:35 PM

Quote:

Originally Posted by Texas_Ace

That would be GREAt, i have a few other problems that could be related to the TPS if it is bad.

Mine shows 9% foot off the pedal and a max of 70 something % I think it was at WOT. It was hard to tell because I can't stay at WOT very long in traffic.

Texas_Ace · 06-21-2008, 07:53 PM

Quote:

Originally Posted by mt_goat

Mine shows 9% foot off the pedal and a max of 70 something % I think it was at WOT. It was hard to tell because I can't stay at WOT very long in traffic.

Well then i guess that is normal, though it seems odd that it would not show the real values.

As for the WOT, i did mine with the engine off, that way i could do it all day and not have a problem lol.

Thanks for the info!

mt_goat · 06-21-2008, 08:23 PM

Quote:

Originally Posted by Texas_Ace

Well then i guess that is normal, though it seems odd that it would not show the real values.

As for the WOT, i did mine with the engine off, that way i could do it all day and not have a problem lol.

Thanks for the info!

Yeah that seems weird. I didn't know it would show up with the engine off, learn something every day.

Texas_Ace · 06-21-2008, 09:04 PM

Quote:

Originally Posted by mt_goat

Yeah that seems weird. I didn't know it would show up with the engine off, learn something every day.

Yep, with the key on and the engine off all the sensors will show up, most are just not working due to the engine not running.

98runner210 · 06-22-2008, 10:02 AM

Check the grounds on the side of the intake by the diagnostic port. Mine were loose and created the weirdest symptoms then eventually quit running.

Texas_Ace · 06-22-2008, 10:40 AM

Quote:

Originally Posted by 98runner210

Check the grounds on the side of the intake by the diagnostic port. Mine were loose and created the weirdest symptoms then eventually quit running.

I don't remember any ground on the intake? Where exactly is this?

98runner210 · 06-22-2008, 11:02 AM

On the driver side there is a diagnostic port bolted to the side of the upper intake. There are 3 or 4 wires bolted right by that box tot he side of the intake plenum

dirtoyboy · 06-22-2008, 11:13 AM

probably all those lights and accessories sucking the life out of your truck

Texas_Ace · 06-22-2008, 11:38 AM

Quote:

Originally Posted by 98runner210

On the driver side there is a diagnostic port bolted to the side of the upper intake. There are 3 or 4 wires bolted right by that box tot he side of the intake plenum

Ok, i knew about the box bu not about the ground, i will have a look at that.

Quote:

Originally Posted by dirtoyboy

probably all those lights and accessories sucking the life out of your truck

LOL, well it did it before those and actually i have not used any of those lights in months due to my alternotor going out and my voltage dropping if i even turn on the stock fogs. But those would not cause any problem with the stock stuff as they are wired totally indepentdent and have not even been used.

SoCalPaul · 06-26-2008, 12:44 PM

Check all your engine ground wires. Disconnect, clean & reconnect them.

Paul

TexanTaco · 06-26-2008, 01:12 PM

TA maybe you don't need to install that supercharger after all, you can just use your turn signals for that extra boost.

Texas_Ace · 06-26-2008, 01:14 PM

Quote:

Originally Posted by TexanTaco

TA maybe you don't need to install that supercharger after all, you can just use your turn signals for that extra boost.

LOL, i wish. Though I can't figure out how the engine RPM goes up and my speed stays the same when it is surging.

06-20-2008, 05:54 PM	#2 (permalink)
pfdaxe Registered User Join Date: Aug 2002 Location: Phoenix, AZ Posts: 1,443	Did you check the fluid in your turn signals? Mine was very low once and as soon as I topped it off....no more surging. I used Toyota OEM synthetic turn signal fluid..... __________________ My 2000 TRD 4 Runner My email

06-20-2008, 06:04 PM	#4 (permalink)
CJM Registered User Join Date: Aug 2006 Location: Central NJ Posts: 4,561	Electrical wiring upgrade... __________________ 96' T100 SR5 4x4, ISR mod, Custom ABS snorkel, KC 57's Hella optilux el cheapo backup lights. Cobra 19III CB, Firestick 4ft antenna, Bilstein shocks. Be polite. Be professional. But, have a plan to kill everyone you meet.

06-21-2008, 11:11 AM	#10 (permalink)
Spence1016 Registered User Join Date: Sep 2007 Location: Ft.Lauderdale, FL Posts: 348	i have never noticed surging while driving, but i have at idle. in park, neutral, or drive as the rpms drop lower(to about 5 or 600) it automatically gives it gas and jumps to 1500. I think the ecu is telling it to do so because of power consumption so it raises the rpms to spin the alternator faster....or somethings broken =/ __________________ 2000 4Runner Limited V6 Auto... 2wd =[[[ Sony GT510 head unit, Kenwood 1700 watt max mono amp, Two 12 inch Polk Subs in ported box, 3 farad capacitor, neons in front footwells Foglights on bottom of rear bumper Optima Yellowtop, Kc daylighters on front bumper Vortex muffler and Trueflow airfilter

06-22-2008, 10:02 AM	#18 (permalink)
98runner210 Registered User Join Date: Oct 2007 Posts: 759	Check the grounds on the side of the intake by the diagnostic port. Mine were loose and created the weirdest symptoms then eventually quit running. __________________ '98 4Runner Limited White w/ silver flares

06-22-2008, 11:02 AM	#20 (permalink)
98runner210 Registered User Join Date: Oct 2007 Posts: 759	On the driver side there is a diagnostic port bolted to the side of the upper intake. There are 3 or 4 wires bolted right by that box tot he side of the intake plenum __________________ '98 4Runner Limited White w/ silver flares

06-21-2008, 03:47 AM	#8 (permalink)
89dlx Registered User Join Date: Oct 2006 Location: Branford, CT. Posts: 932	I've seen some electrical problems appear from the little wire (from the NEG terminal to the inner fender) being broke.

06-26-2008, 12:44 PM	#23 (permalink)
SoCalPaul Registered User Join Date: Jun 2008 Location: Valencia, CA Posts: 388	Check all your engine ground wires. Disconnect, clean & reconnect them. Paul __________________ Gone, but not forgotten: 1996 4X4 4Runner LTD. Purchased used 5-08, 120K. Now has 265/75 16 Terra Grapplers, Performance Products springs, Bilsteins. Cupholder Mod. 2001 Tundra, V8, 4x4, Xtra cab, Limited, TRD Offroad. PP springs, Bilsteins, Snugtop shell. Owned 0-112k mi. 1992 4Runner, V6, 4x4, 5spd, SR5, PP springs, Bilsteins. Owned 0-219k mi. 1988 Pickup Xtra cab, I4, 4x4, 5spd, SR5, Ranchos, rear shackles, shell. Owned 0-122k mi.

06-26-2008, 01:12 PM	#24 (permalink)
TexanTaco Registered User Join Date: Mar 2008 Location: Allen, TX Posts: 246	TA maybe you don't need to install that supercharger after all, you can just use your turn signals for that extra boost. __________________ 2004 Tacoma Xtra Cab/PreRunner/SR5/TRD 1998 4Runner Limited

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