So I just replaced my cap, rotor, wires and plugs and now it runs like crap. They were gapped properly and all in the right order, I checked twice. But on the passenger side rear plug, number 5 it took me 30 min to get the plug in and I dont think it went in right. It didnt feel like it crossthreaded but I can hear something ticking badly now. Any ideas? 1995 3.0

 

#5 did the same thing on me, took 4ever to put it in because it didnt look like the other two on that side, looked like it was going in lower. but it didnt feel cross threaded. It did run like crap, so I figured that had to be it.Long story short, take it out and when you tighten it, try to get it at the same angle as the other two on that side. Mine needed to go back in at a higher angle, it did just fine and runs smooth as silk now..good luck. What plugs you using?

 

what brand of stuff are you useing ? did you use antiseize

 

No anti seize, bosh platinum plugs, duralast wires cap and rotor. El-Cheapo stuff

 

If the plug did not go in finger-tight, and you had to use a wrench to get it in, you crossthreaded it.

Always always always start plugs by hand, and get them at least 5 turns before starting in with a wrench. That way you dont crossthread them.

and btw.....especially on the 3.slow....Cheap parts=cheap performance. What did you expect with cheap quality parts?

 

First mistake is the bosch platinums. Take them back and get some denso's.

 

I just replaced my cap, rotor & plugs today on my 95 3.0 & it's running fine. But I didn't have any trouble getting the #5 to thread (reaching it to get it started was a p.i.t.a.) if you cross threaded it there won't be a proper seal & you'll hear a tick as the pressure escapes.

You did them one at a time...right? If you did them all at the same time (all wires off at once) it's probably out of firing order.

 

theres the problem

 

NGK or Denso plugs are the way to go.

If you had to work to get the plug in you may have crossthreaded it, or bent the electrode causing the spark to be wrong, and out of balence with the other cyls.

When you're installing plugs always lubricate the threads with antisieze, or atleast wd-40 to keep them turning smoothly. You always want to start them by hand, or if you cant reach hold the socket in your hand. Tightening them by hand will prevent crossthreading.

 

Alright I took it out and rethreaded it and its running fine, must not have got it in all the way. They arent super cheapparts, it was 94 dollars for all the parts. I couldnt spent 110 for a different brand name stamped on the same part, that wouldve made it run a lot better. I did the seafoam treatment as well and it seems to run a lot better now, still kind of hard to start, brand new starter any suggestions?

 

Check the timing

 

Its advaned 6 degrees due to altitude

 

http://www.sparkplugs.com/ they got everything you need...

NGK or Denso, bosch do not run well in yotas.

 

Why do people think that all parts are the same, with different names stamped on them????

Compare the factory wires to those crappy aftermarket wires. If you ever have to remove the wires and plan on reusing them, you will be kicking your own ass for not ponying up and buying factory. That aftermarket junk falls apart, and the quality is just not there.

same thing with the plugs. The plugs are cheapo generic. They are not even heat indexed correctly for the truck. I would never run bosch anything on any of my rigs. Bosch is total junk. Perhaps it will work for the "here and now" but that stuff does not do well long term.

Also, the starter has NOTHING to do with the actual starting feature of the truck. Really, it should be called a Turner, because all it does is turn the flywheel. Thats it. It either works, or doesn't. If you are having issues get the truck started running, there are other problems with the rig.

btw.....$94 is cheap. I spent that much on my plug wires for my 3.0l, but I am SO glad I did. It didn't even really need new plug wires, and the date stamp on the factory originals said 1989. How's THAT for quality? Ever find an Autolite or NGK plugwire set that would last 18 years? heh.

Ok, rant off. I'll get off my soap box.

 

Bosch isn't bad, they might not perform well in a Toyota as many have said but I've run Bosch in my old Dodges & have had the same set in my '90 model for over fifteen years & they still look & perform perfect.

Granted as I said above they are not designed for Toyotas, but that doesn't make them "cheap junk"...it just makes them the wrong choice for that particular model of vehicle.

Do as others suggested & get some Denso or NGK plugs. I just sprung for the NGK Iridium IX yesterday & the engine fired up nice; can't say how they will work long term or how they will affect the fuel mileage until I run a tank or two through it. Since I've only been getting 11 m.p.g. & I just adjusted my timing from 0 t.d.c. after putting in a new w.p. & timing kit I doubt it will get worse but it'll be hard to say what the plugs did & what the timing did to affect the m.p.g.

P.S. I've been running the vehicle @ 0 t.d.c. because I hadn't gotten a new timing light until yesterday. It ran fine at that timing but was hard(er) to start when cold.

 

For the record: Every vehicle I ran bosch on ran really rough, changed them out even for some cheapo napa brand in some cases and it ran fine. Bosch are designed for european sports cars, they run fine in those I hear. If you have had the same set of plugs in for well over 15 years how much driving does it actually see?

 

Oh about 300,000 +, the '90 model is my work truck & the odometer stopped working shortly after I bought the truck (bought it in late 92) in 1994 at 219,381 miles when the tail shaft bushing went bad in the tranny & the vibration killed it (sensor I assumed). I'm just guessing at the mileage of course but I have driven it from Wisconsin to Florida, South Texas to the Rocky mountains outside of Blackhawk Colorado doing aerial line work for twelve years. The vehicle gets driven all day too going pole to pole & hauling tools, equipment & pulling trailers, not just to & from the jobs. I calculated on one job how much it was driven & it average out to 245 miles a day based on a five day week (out of town we usually work a seven day week) & it's been driven that way until the last job I used it on working hurricanes Katrina & Rita. I just started it a few days ago for the first time in over a year & it fired right up.

I've used Bosch in every Chevy,Pontiac,Ford,Lincoln,Mercury & Dodge I've had since the 80's with no trouble. Basically every vehicle I've owned with only a couple exceptions, a 1986 Cavalier wagon & a 1979 Dodge D-50. Those never got them because I just never bothered doing maintenance on either of those vehicles besides the occasional oil change, just drove them until they laid down.

Like I said, I'm only speaking from my personal experience with them, I've never tried to use them in a Japanese motor or anything other than domestic V-8's actually; but in those motors they have worked great for me every time. I've read where many people have complained about having trouble with them in Toyota's & I don't doubt it at all. But I've seen too many people parrot what they have seen others say about the plugs as the cause of everything from not starting at all to bad gas mileage & I think the truth lies somewhere in between. They don't perform well in these Toyota engines apparently; heck the plugs I just pulled out of this 4runner I just bought were champions...I've never been crazy about those plugs but they were burning correctly & looked decent when I pulled them out.

 

I didn't parrot it...I had them before...the +4's and +2's and still had problems. Iridiums weren't worth the money...maybe in a V8 but definately not that 3.0. If you have a stock 3.0....better stick with OEM stuff if you want it to run properly.

Also I have rebuilt motors before...so I did know what I was doing. I have owned nothing BUT used vehicles so I had to work on them myself!

 

I never said you did.

 

I dont want to get into af laming war but thats just what autzone sells here, Im a teenager on a lower budget and am not going to spend $200 on a tuneup when it doesnt NEED it. I just do most of the work on my vehicles for preventative maintenece. My 88 toyota 22RE had bosch platinums in it forover 2 years and when I finally changed them they werent bad at all, I sandblasted them and air blew them out and put em back in and they worked fine still. Sure if you have the money why not buy better stuff but hey I dont got thee greatest job and moneys tight considering I just had to buy a $1100 tranny for my other dd. If you want to get technical my RX-7 has 4 wires, 4 plugs and no dist cap/rotor and a tuneup for it with 'real' brand name parts are over 200 and I bitched and moaned about it for months lol. Ive always tended to use the cheaper things on my vehicle and havent had any problems really but to everyman is his own I guess. As long as it works for me Ill continue to use it, this is the first tuneup Ive done to the 3.0 and if they start to give me trouble I will upgrade but I work from the bottom up