roruiz

I have a ticking sound coming from my engine. I have narrowed it down to the injectors. I used the listen with a long screw driver method to rule out other possibilities. Of the 5 injectors I was able to check through this metod (the rear center injector being inaccessible), the rear right injector sounds considerably different than the other four and has a faint ticking sound. I suspect the rear center injector to be the main culprit however. Since I have to remove the upper manifold to remove any of the rear injectors, I was going to change all three.

My question to anybody who has had to change their injectors is, are there any other parts I need besides the injectors, such as o-rings or a new upper manifold gasket?

Any help is much appreciated.

Ruben

2naboy

iTrader: (1)

you dont need to replace the gasket as long as it is in good condition. The same goes for the o rings. But you make sure that the injectors are faulty before you go through all that work for nothing. Is the engine misfiring that is always a good indicator of a bad injector. The ticking of the injectors are normal if I were you I would first get them cleaned. Try using lucas fuel treatment or go to nissan if you got the dogh it will cost over $100.

roruiz

No, no misfire. The car runs fine other than the anoying ticking. My friend said he could hear my car from inside his house.

I30tMikeD

iTrader: (8)

The loud ticking is perfectly normal. Now if you had a misfire problem and the coil pack and spark plugs were fine then I might suspect an injector problem. I would not go replacing injectors for no reason. I would be worried if they were not ticking.

2naboy

iTrader: (1)

+1 on that comment its a lot of time and money to waste just to change perfectly good injectors.

roruiz

Ok, thanks for the input. I'll think about this a bit more

Maximus101

Do you think it's possibly an exhaust manifold gasket leaking? I know that it usually sounds like a tick tick tick when those leak...

roruiz

I don't think it's the exhaust manifold but it won't hurt to check

DAVE Sz

iTrader: (2)

If one of your injectors is ticking at a slow pace or slower than others chances are it's clogged up or bad. If you replace it make sure to get a new gasket(1996 people).