95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

Rough Runner! CE Light=Diagnosis HELP needed

Thread Tools
 
Search this Thread
 
Old Oct 10, 2004 | 08:19 AM
  #1  
amorphous's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 880
Likes: 0
From: Greenleaf, Ore
Rough Runner! CE Light=Diagnosis HELP needed

Hey guys....

took my 3.4l equipped runner camping and wheeling yesterday....no water, nothing into the engine compartment....and heading to the campgrounds the engine started running rough crusing along at 55-60 in 4th gear...before a downshift...at about 2400-2500 rpm - but, if you gave it gas, it would take out like a kicked mule... ....however...this a.m. it's gotten a bit worse...so here I am at my mom's house 70 miles from home....

my plan of action:
spark plugs - I've never done 'em...figure start there AND
CLEAN THE MAF! And wires to follow if the plugs don't do the trick (and just to do them too...)

other than that....I've put a can of Lucas gas treatment in the tank....and ... I NEED SUGGESTIONS!

i know that the stealership could help me w/ the computer diganosis of the o2 sensor, etc....but...it's SUNDAY.

thanks in advance!

Åaron
Reply
Old Oct 10, 2004 | 09:06 AM
  #2  
User 051420's Avatar
Contributing Member
 
Joined: Jan 2004
Posts: 3,534
Likes: 0
Was your CEL flashing at any point?
I had a real bad misfire. Plugs and wires did the trick!
Reply
Old Oct 10, 2004 | 10:40 AM
  #3  
Johnboy's Avatar
Registered User
 
Joined: Oct 2004
Posts: 234
Likes: 1
From: Columbus, GA
noob question= whats a MAF and how do you clean it
Reply
Old Oct 10, 2004 | 11:07 AM
  #4  
amorphous's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 880
Likes: 0
From: Greenleaf, Ore
Originally Posted by gapguy
Was your CEL flashing at any point?
I had a real bad misfire. Plugs and wires did the trick!

THAT's it....i hope this does the trick....now....off to GAP my "pre-gapped" bosch plugs.....yeesh!

Å
Reply
Old Oct 10, 2004 | 11:11 AM
  #5  
amorphous's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 880
Likes: 0
From: Greenleaf, Ore
oh yeah....john boy....maf= mass airflow sensor....
you clean with electrical contact cleaner! search it ...you'll find a TON of ˟˟˟˟!

ä
Reply
Old Oct 10, 2004 | 02:49 PM
  #6  
amorphous's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 880
Likes: 0
From: Greenleaf, Ore
ok...it's fixed!
Plugs, wires and a MAF cleaning (which I *don't* think it was a dirty MAF)

I'm kinda kicking myself....shoulda done this before now...but....
anyway, looks like the wires were ORG! (they have 1997 ink'd on them, and the truck is a '98 built in 10/97!)

and....IIRC, I've read this in a thread somewhere.....
passenger side were NGK....driver side were DENSO! WTF!???!?

but....worried mind at ease!

Å
Reply
Old Oct 10, 2004 | 02:52 PM
  #7  
User 051420's Avatar
Contributing Member
 
Joined: Jan 2004
Posts: 3,534
Likes: 0
Good luck with the Bosch plugs. A lot of members seem to have problems with them. Glad to hear you're up and running again.
Reply
Old Oct 10, 2004 | 03:20 PM
  #8  
Johnboy's Avatar
Registered User
 
Joined: Oct 2004
Posts: 234
Likes: 1
From: Columbus, GA
Originally Posted by amorphous
oh yeah....john boy....maf= mass airflow sensor....
you clean with electrical contact cleaner! search it ...you'll find a TON of ˟˟˟˟!

ä
aight dude thanks
Reply
Old Oct 10, 2004 | 04:11 PM
  #9  
Mikey's Avatar
Registered User
 
Joined: Apr 2003
Posts: 234
Likes: 0
From: Indiana, PA
My suggestin would be to go back in and get those Bousch out of there. I never liked any of their plugs. I always use the stockers!
Reply
Old Oct 10, 2004 | 06:41 PM
  #10  
amorphous's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 880
Likes: 0
From: Greenleaf, Ore
ok....so....the ride home.....
(test drive was FINE)

going up hills at about 80 mph (crusie control) when the 4r dwnshftd to 2nd, at about 3.5-4k rpms.....it would start to sound rough....nothing like before....but similar....then the CEL would flash for a bit.....then it would go away. AH! This happened on every BIG hill....thank God I'm not in the MTNS!

so, STILL a BIT of misfire....nothing like before....but....yeah....I'm thinking the Bosch's are going to go BYE BYE and I'm going to spend the money on 'yota partz from the stealership.

Å
Reply
Old Oct 11, 2004 | 04:14 PM
  #11  
amorphous's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 880
Likes: 0
From: Greenleaf, Ore
crap! it's BACK! CEL and all....i've got an appt at the stealership tomorrow for a code check.....$60! ah well....at least then I'll know where the problem is......
suggestions???

Å
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Yont283
84-85 Trucks & 4Runners
7
Sep 23, 2022 08:06 PM
Alex Bessinger
86-95 Trucks & 4Runners
4
Jun 28, 2015 10:05 AM
shredder4286
Newbie Tech Section
2
Jun 27, 2015 09:42 AM
ACZR
95.5-2004 Tacomas & 96-2002 4Runners
0
Jun 23, 2015 07:55 PM
94hiluxZE
86-95 Trucks & 4Runners
0
Jun 22, 2015 10:42 AM




All times are GMT -8. The time now is 11:44 AM.