87 4runner 22re ,5spd,Truck sat for several years before purchase.40,000 miles on dealer inst long block.Truck ran great except valve noise adj valves.ran great 24mpg completely stock.Started missing,unplugged wires no difference when unplugged #3.Changed wire ,plug,checked getting spark,checked valve clearance,good,unplugged injector 12v on both pins,good,checked resistance on injector 2.4 ohms,good .Gonna try some inj cleaner tomorrow.Have I missed anything ? Ideas appreciated not hated

 

Well since no one has chimed in I realized I didn't check valve spring tension or a compression test.I'm still gonna try the cleaner first because truck sat for so long.

 

Well compression was 160.I could hear the injector pulsing with a scope,still missing .Bought some cleaner and put it in will try and drive it a while tomorrow.

 

did you check the cap? maybe number 3 is excessivley worn?

 

how were you able to identify that #3 is the problem. when you pulled the caps you had no change in any of the cylinders? what did the plugs look like?

 

All plugs looked the same.Ipulled the plug wires off one at a time.There was no change when I removed #3plug wire.I checked the rotor and cap.looked ok.Getting spark with tester connected to plug wire.swapped plugs with #2 .I will remove the valve cover tomorrow and check all the valves for proper movement.I read in another post ,that someone found something in fuel rail.someone else found something in the intake manifold,I've been very happy with this runner getting 24mpg for the last month since purchase.Thanks for the replies too .

 

Did you adjust the valves hot? If not then theres your prob.... possible stuck valve.... Injector....

 

rechecked valves they're right.drove a thousand miles since initial adjustment.I could hear the injector pulse (cycle) with a scope.Will chwck for stuck valve tomorrow the list is growing .Thanks

 

just had same problem, some inj have built in filter screen that gets clogged, all test come out normal, if sat for awhile, check for a turd stuck in this filter, i had to use air pressure to blow back out of inj, once done, it ran like achamp

 

crud was coming from blocked port in fuel rail, rite before the injector, Q-tip worked great

 

va slim was right.# 3 and 4 injectors completely clogged. 2 had some in it also.gonna clean them and put it all back together.I'm with slim if it has sat for a while you may need to check the injectors.Mine has ran great for a month .I don't see.I can't wait to see how she does now.

 

Well I put her back together this morning and drove her down to the station in SC gas is 15 cent cheaper across the line.She's running great.Hopefully all the sitting bugs are gone now.

 

you just cursed yourself.

 

Well after working on the 3.0 for the last ten years.It's kind of fun wrenching on this 22re.I didn't like working on the 3.0 with all the vacuum lines and no room. It was a good reliable engine except no power and terrible fuel economy.I work on big trucks all day .Don't get me wrong I want to drive it more than work on it but I don't hate working on this one like I did my 95 3.0

 

I don't mind turning wrenchs, its rolling around on the floor in the cold antifreeze-oil mixture.