93 4runner 3.0 4x4 ran great this morning like a top went to start it 20 mins ago now i have a rough idle and it wont stay started the plugs wires cap and rotor have 2500 miles on them timing was checked 10 btdc like it should be vac lines seem fine what happend in a couple hours ??? anyone ?? i need help now have to get fix before tomorrow

 

almost forgot wont turn ver till i pump the gas... its neveer never done that and im getting dark smoke when i rev it

 

air filter timing chain jumped a tooth or two fuel filter MAF
bad vacuum leak

 

what do you mean won't turn over?

 

wont turn over= wont start till i pump the gas

 

have you check to make sure you are getting fuel to the injectors? and it does not run at all?

 

if i pump the gas she will start then i need to rev it to keep it going when it idles it is very low and rough

 

im checking things as and typing here at the same time!

 

timing - vacuum leak - have you checked for codes

 

no codes just checked timing 10 btdc got the idle up however when i rev it it revs dark smoke from the tail pipe not black just a dirty shade of white

 

have you checked for water in the oil, or oil in the water. take a good look at your head gasket. if i am not mistaken, and i hope i am, white smoke is water in the combustion chamber, if it is doing it after everything has warmed up, then it is not condensation . 3.0 have a bad rap for their head gasket

 

no oil in the water or water in the oil that was my FIRST look lol im thinking tps right now while in gear its sugring kinda hunting for rpms either that or i jumped a tooth on the timing ill be back in about 20 mins

 

get under and look real good at the HG with the truck running. my fluids were fine, but still had a bad HG.

 

so... ive just got done testing the TPS and its working fine! so... my runner is still looking for a happy place at idle ( its idling very low 250 and surging up to 1200) its also blowing dark exhaust fumes ( not white which would lead one to the HG) so its running rich and surging im thinnking TIMING anythoughts beyond that ? that being said how about some opions on DIY timing belt ive never done one on a yota looks easy have the fsm im looking now for tricks to it so FIRE AWAY

 

also soes anyone recomend a brand or kit or will just anyone do seems everything else should be OEM is this one of those thing also?

 

i had the same problem, but all i had to do was buy part of the air hose that connects to the throttle body, it wasnt sealed good enough "meaning the previous owner had it ELECTRICAL-TAPED" to try and seal it. :p

 

did yours blow dirty smoke also ?

 

umm i dont recall dirty smoke but i do recall a NOT NORMAL smell

 

if theres a leak then theres no vacuum seal, which powers like everything and youre fuel/air ratio, im no expert but i can maybe guess its just a not clean explosion, i had to constantly keep the idle up at stop lights just to not kill it.

 

which hose did you replace im willing to try anything before i jump into the timing