i have to keep my rpms up or my engine kinda stumbles. it used to be that i could co about 30 in 5th an i didn't have much power but it was ok. now if i'm going 50 in 5th and hit the gas a little it stumbles... it does it most of the time but not all the time. startin out it stumbles till i get up to speed an if i want the engine to run right i have to stay in 1st till about 25 2nd till 35 3rd 45 4th 55 an then 5th. it's almost like the engine is missing. idk what to do. it's gettin worse an it's driving me nuts. it doesn't do it if i'm not really pushin the gas or if i have it on the floor but if i'm just pushing the peddel some it stumbles. idk how else to say it. thanks for any help
-Jeff

 

hows ur sparkplugs wires rotor and cap and hows is the fuel fliter ? i dont know but my truck acting wreid it almost runs like when u put the plug wires on backwords

 

You might have gotten water in your gas too. Try some HEAT.

FRED!

 

My 83 used to stumble at lower RPMs, it was most notable to me in parking lots, say if I left it in 2nd gear and just let it lug me around the turns, etc. I adjusted my valves and the problem is gone. As a side effect, it used to also have some hesitation when cold, but that problem is gone now as well. I'd say give the valves a good adjustment, fairly easy, costs you nothing if you already have feeler gauges.

 

fule filter was replaced less that 10,000mi prolly more like 5,000 but i think i might had gotten bad gas so do i need to replace it again? sparkplugs have about 30,000 thats ok right? i don't know about the wires roter an cap think i should replace them? what do u mean try some heat? an i have no idea how to adjust my valves how hard iz it?
thanks for all your help
-Jeff

 

ok so i'm gonna do sea foam an c if that helps. can some one pleas post a pic of the pcv valve? i have no idea where it is thanks for all your help
jeff

 

well i dont have a pic but its easy to find look all the back by the firewall theres a hose that goes from the valve cover to the intake manafold its the only back there if u leave ur truck runing and pull it off ur truck will die then u know u found it

 

heres a pic

 

Check your TPS and EGR valve too.

 

thanks. um as u can prolly tell by now i don't know much about fixing trucks (yet) so um what in that pic is the pcv valve? an how do i check my egr and tps? thanks again.

 

if your gonna seafoam it just pour it into the brake booster vaccum line...easiest and biggest line to get to on our trucks....


pcv line is on th eleft side belw the intake runners..

 

sorry i'm so dumb but is it this? this is what one of my friends told my he thought it was. also does it go in the hose or the fitting? thanks for helping a dummy.

 

yep u found it

 

welp i think i found my problem. i seafoamed it on sun an it didn't really do anything so i wuz gonna do it again tonite an wait a little longer b4 restarting. so i went out started the truck opened the hood looked in an saw a spark going between the rubber boot that goes on the spark plug and the engine block. (an i wuz about to pore something flammable in near it) it wuz just once about every second. i turned the engine off an looked at the rubber boot there wuz a little dirt on it so i cleaned it and put it back on started the engine an i didn't see it again but i guess it's time for new plugs and wires. do you think it's the plugs or the wires? anyway i'll let you know if that fixes it.

 

should i get NGK "Premium wire set" wires or stock toyota? an NGK GP Platinum, NGK V power, NGK "Traditional spark plug", or something else?

 

either wires will be fine, and either plug will do fine, i run the v-powers in the 4runner and like them