Author Topic: Engine surges under the load  (Read 877 times)

0 Members and 1 Guest are viewing this topic.

damn_cajun

  • Offline Dusty Trails
  • *
  • Turtle Points: 0
  • Posts: 1
  • Member since May '20
  • Crawling with Marlin
    • View Profile
Engine surges under the load
« on: May 25, 2020, 02:17:11 PM »
86 4R 22RE 4x4

The engine periodically surges under load and intermittently having a hard time starting it.  Battery and starter are fine just may take a couple minutes of trying to turn it over.

Have an engine code "6".

No engine revolution sensor (Ne) signal to ECU
- Ne being over 1000 RPM in spite of no Ne signal to ECU
- Defective Igniter circuit
- Defective Igniter
- Defective distributor
- Defective ECU

Code 6 point to the coil and ignitor.

Another symptom is an erratic fatory tachometer, as the tach. signal comes from the ignitor circuit.

Should I start with a new distributor then coil, igniter?

Sent from my SM-N976U using Tapatalk


gnob

  • Offline 4WD Legend
  • *****
  • Turtle Points: 486
  • Posts: 810
  • Member since May '02
    • View Profile
Re: Engine surges under the load
« Reply #1 on: May 25, 2020, 06:10:45 PM »
I would start by actually diagnosing the problem.

An RE should fire in half a crank.  So while you are freakin' around for a "couple minutes"
Maybe see what is not happening.
Is the ecm actually turning on initially?
If it is, are you not getting spark? Fuel?




..... or just throw parts at it until something changes.
hold this. . .

sirdeuce

  • Offline Rock Master
  • ***
  • Turtle Points: 389
  • Male Posts: 343
  • Member since Sep '06
  • One shot, one kill.
    • View Profile
Re: Engine surges under the load
« Reply #2 on: May 26, 2020, 03:11:24 PM »
Before replacing anything check your grounds.
Sure it'll fit........ Just needs a little brute finesse.

OVRAROK

  • Offline The 2.5K Group
  • ****
  • Turtle Points: 23603
  • Male Posts: 2,856
  • Member since Dec '10
    • View Profile
Re: Engine surges under the load
« Reply #3 on: May 26, 2020, 04:40:15 PM »
And vacuum lines..also air intake plastics for hairline cracks..
Even the most primitive society, has an intimate respect for the insane.

sirdeuce

  • Offline Rock Master
  • ***
  • Turtle Points: 389
  • Male Posts: 343
  • Member since Sep '06
  • One shot, one kill.
    • View Profile
Re: Engine surges under the load
« Reply #4 on: May 26, 2020, 11:34:02 PM »
A vacuum leak wouldn't cause issues with the tach, that would be electrical. Although that is a good place to look. If the tach is behaving erratically  definitely look for loose connections. No sense in replacing parts if the problem persists. Since I've not had the time I had a shop check my '90 2WD 3VZ. They replaced the knock sensor, o2 sensor, EDCT sensor, ECU and still didn't find the issue. After giving my money away, I forced myself to take a weekend out to figger this dang thing out. Found the previous owner had replaced the knock sensor, and ended up pinching the harness when they reassembled the top of the engine. Several hundred in parts unnecessarily, and 'techs' that just went by what the ECU indicated. So do yourself a favor, pull out the DVOM and maybe the scope and do a little diagnostic party.
Sure it'll fit........ Just needs a little brute finesse.

Gnarly4X

  • Online Silver Turtle Award
  • *
  • Turtle Points: 3910
  • Male Posts: 3,409
  • Member since Jun '16
  • Marlin and I slid "The Sluice" Martinez Canyon
    • View Profile
    • Buy me some coffee
Re: Engine surges under the load
« Reply #5 on: May 27, 2020, 01:40:49 AM »
86 4R 22RE 4x4

The engine periodically surges under load and intermittently having a hard time starting it.  Battery and starter are fine just may take a couple minutes of trying to turn it over.

Have an engine code "6".

No engine revolution sensor (Ne) signal to ECU
- Ne being over 1000 RPM in spite of no Ne signal to ECU
- Defective Igniter circuit
- Defective Igniter
- Defective distributor
- Defective ECU

Code 6 point to the coil and ignitor.

Another symptom is an erratic fatory tachometer, as the tach. signal comes from the ignitor circuit.

Should I start with a new distributor then coil, igniter?

Sent from my SM-N976U using Tapatalk



Why do I get a little annoyed when a new poster appears  in the forum and asks us to put on our pointy wizard hats and grab our magic wand and start pulling little white rabbits out of our butts. Then several members (they may actually be wizards) start throwing magic poo-poo against a wall to see what sticks.

What the hell does “periodically” “surges” and “intermittently” mean?

Periodically = every year, every month, every week, every other day?

Intermittently = every 3rd time the engine is started, at a cold start, a hot start?

Surges under load = while driving in 1st gear, while driving on freeway, while driving up a steep grade, while pulling a U-Haul, while driving over a big-a$$ rock?

The 22RE has critical inputs to the ECU, and some very expensive sensors.  Like deucie said - replacing parts to solve a mystery problem is like sniffing flowers through your butt.

What condition is this engine in?

When was the last time it was tuned?

Has anyone been messing with the engine?

How many miles on the engine?

What elevation in the vehicle driven?

What is the climate?

I have no magic and I'm short on little white rabbits, but here's a helpful hint:   Let’s define the problem, so we have something reasonable or logical to go on!  :thumbs:

That’s just my opinion – it may be worthless.

Sorry, I'm working 12-hour shifts and I'm feeling a tad crotchety this morning.  :gap:

Gnarls.  :inthedark:
« Last Edit: May 27, 2020, 01:57:20 AM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

sirdeuce

  • Offline Rock Master
  • ***
  • Turtle Points: 389
  • Male Posts: 343
  • Member since Sep '06
  • One shot, one kill.
    • View Profile
Re: Engine surges under the load
« Reply #6 on: May 28, 2020, 03:06:58 PM »
I wish I was working 12 hour shifts. Wish I was working.
Sure it'll fit........ Just needs a little brute finesse.

Gnarly4X

  • Online Silver Turtle Award
  • *
  • Turtle Points: 3910
  • Male Posts: 3,409
  • Member since Jun '16
  • Marlin and I slid "The Sluice" Martinez Canyon
    • View Profile
    • Buy me some coffee
Re: Engine surges under the load
« Reply #7 on: May 29, 2020, 12:33:59 AM »
Where's the "damn_cajun"  :inthedark:

It's been 5 days since the OP post. ???

Did you solve your mystery surge or do you still need some serious help? :dunno:

I hope that COVID-19 is not factor!  :shake:

Gnarls.  :attention:
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

RUGER

  • Offline Crawler Guru
  • ****
  • Turtle Points: 5263
  • Male Posts: 738
  • Member since May '02
  • I love Marlin Crawler!
    • View Profile
    • Buy me a beer
Re: Engine surges under the load
« Reply #8 on: May 29, 2020, 03:27:39 PM »
dont know. maybe we didnt give him the info he wanted to hear. i thought it was a fuel issue could be electrical to. haha

RUGER :usa: :beer: :usa:
:usa: GOD BLESS AMERICA :usa:

"the hag" 83 toy with 5" all-pro lift, marlin crawler dual case #1011 and marlin hy-steer, 35s, 5.29's, exo cage, yada, yada, yada. she's back in black.

97 F250
84 Grand Waggy
77 Scout II SS

USN SEABEE 2008-1012 :usa:
run with THE PACK 4wdc of los osos
NRA life member

Gnarly4X

  • Online Silver Turtle Award
  • *
  • Turtle Points: 3910
  • Male Posts: 3,409
  • Member since Jun '16
  • Marlin and I slid "The Sluice" Martinez Canyon
    • View Profile
    • Buy me some coffee
Re: Engine surges under the load
« Reply #9 on: May 29, 2020, 04:59:26 PM »
dont know. maybe we didnt give him the info he wanted to hear. i thought it was a fuel issue could be electrical to. haha

RUGER :usa: :beer: :usa:

I agree, my first thought was air/fuel mixture, fuel pressure, injectors.   Possibly a vacuum issue.

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

RUGER

  • Offline Crawler Guru
  • ****
  • Turtle Points: 5263
  • Male Posts: 738
  • Member since May '02
  • I love Marlin Crawler!
    • View Profile
    • Buy me a beer
Re: Engine surges under the load
« Reply #10 on: Jun 01, 2020, 05:19:42 PM »
yep thinking fuel filter or pump.

my fuel pump or filter left me stranded in my old car the middle of nowhere on my way back from base sometime after i got back from the sandbox. aaa took there sweet time getting to me and brought me to the next town since he got a more urgent call. called a buddy who picked me up in an enclosed trailer. we were being towed by his truck(his wife driving), in a trailer, me and my buddy were in my car listening to charlie daniels drinking beer. haha
we changed the fuel pump and filter car was good to go again.

RUGER :usa: :beer: :usa:
:usa: GOD BLESS AMERICA :usa:

"the hag" 83 toy with 5" all-pro lift, marlin crawler dual case #1011 and marlin hy-steer, 35s, 5.29's, exo cage, yada, yada, yada. she's back in black.

97 F250
84 Grand Waggy
77 Scout II SS

USN SEABEE 2008-1012 :usa:
run with THE PACK 4wdc of los osos
NRA life member

Gnarly4X

  • Online Silver Turtle Award
  • *
  • Turtle Points: 3910
  • Male Posts: 3,409
  • Member since Jun '16
  • Marlin and I slid "The Sluice" Martinez Canyon
    • View Profile
    • Buy me some coffee
Re: Engine surges under the load
« Reply #11 on: Jun 02, 2020, 02:01:32 AM »
Where's the "damn_cajun"   :inthedark:

Gnarls. ???
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Gnarly4X

  • Online Silver Turtle Award
  • *
  • Turtle Points: 3910
  • Male Posts: 3,409
  • Member since Jun '16
  • Marlin and I slid "The Sluice" Martinez Canyon
    • View Profile
    • Buy me some coffee
Re: Engine surges under the load
« Reply #12 on: Jun 06, 2020, 01:12:18 AM »
Where's the "damn_cajun"   :inthedark:

Gnarls. ???

 :eye:
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR