Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

engine cuts out under stress (update): I think I fixed it

  • Please log in to reply
9 replies to this topic



    USMB Reverend

  • Members
  • 618 posts
  • Jersey Shore (Central) PA

Posted 11 November 2004 - 09:55 PM

the engine keeps cutting out when it is under stress, like full throttle or going up hills, this makes it very hard to drive, because it can only go slow, or it would cut out.

#2 idosubaru


    Elite Master of the Subaru

  • Members
  • 23,254 posts
  • East Coast

Posted 12 November 2004 - 11:22 AM

check your air filter.
how is the ignition system? coil, plugs, wires, cap rotor?
fuel filter (i doubt it, but easy to replace)
anytime i'm faced with a problem i like to replace all this stuff to start, because it's cheap, keeps the car running good and eliminates them from the possibility. except the wires, i have magnecor wires that will never need replacing. everything else, i replace often.

i don't know jack about brats...i guess it's carbed but if it is not - how are your fuel injectors, fuel pump? see any fuel leaking around the fuel injector seals?

if it's carbed i can't help you much on fuel supply.

#3 Sweet82


    Elite Master of the Subaru

  • Members
  • 3,273 posts
  • Salt Lake City

Posted 12 November 2004 - 11:35 AM

I second the motion on the Cap, wires, rotor.

I'd give it a good basic tune and see if that doesn't clear it up?

I had the same thing many years ago and it turned out to be a wire?
A basic tune finally took care of it for me.

Good luck
82 SubaruHummer
01 Forester



    USMB Reverend

  • Members
  • 618 posts
  • Jersey Shore (Central) PA

Posted 12 November 2004 - 05:49 PM

it goes like this: at full or near full throttle, it starts cutting out.

today on the way to the college I had to drop from 70 to 55 to go up a hill (any more gas and it would have cut out) - you know how you have to floor it for hills

there is a problem, I don't know what year the engine is from (it was replaced before I got it), and also what timing is specific for the engine. I got a new cap and rotor for it, but it didn't fit, also we changed the timeing and it made no difference, still does it.

cap, rotor, tune up. got it, I'll figure out what its from

oh and also, could the sceondary barrel on the carb somehow be causing this? the vac line to the secondary was cut and plugged, along with 4 others. maybe he did it for a reason.

P.S. I removed the vac valve to the sec. and did the 1/3 throttle carb mod.



    USMB Reverend

  • Members
  • 618 posts
  • Jersey Shore (Central) PA

Posted 13 November 2004 - 01:49 PM

put on new cap & rotor, it made no difference

#6 stngllhm


    Subaru Fanatic!

  • Members
  • 367 posts
  • Casper

Posted 13 November 2004 - 02:19 PM

is your choke sticking closed? i had a problem like this on my 84 wagon and it was the choke

#7 Qman


    Happiness is... no lag!!

  • Moderator
  • 11,119 posts
  • Sumner

Posted 13 November 2004 - 02:23 PM


Replace both of them and the problem should go away. One is in the engine compartment and the other is under the Brat near the tank on the drivers side I believe.



    USMB Reverend

  • Members
  • 618 posts
  • Jersey Shore (Central) PA

Posted 13 November 2004 - 04:47 PM

the choke is working alright, I am going to go to advance auto in about a half hour, I'll get fuel filters too.



    USMB Reverend

  • Members
  • 618 posts
  • Jersey Shore (Central) PA

Posted 14 November 2004 - 04:57 PM

I replaced the one in the engine bay, but not the one under the car, do you think that the filters are really the cause of this, how? not high engough fuel pressure?

I have done so far:
adjusted timing
adjusted valves
replaced cap, rotor, wires
fixed exhaust leak
the carb secondary mod



    USMB Reverend

  • Members
  • 618 posts
  • Jersey Shore (Central) PA

Posted 14 November 2004 - 05:54 PM

after I posted I put the other filter on and took it for a drive:

sorry for doubting you qman.

now to see if it was just a fluke and test it on the highway tomorrow

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users