The trailblazer has throttle body fuel injection. Not individual injectors.
I have a 2003 Trailblazer, and upon investigation, I come to learn that just before the infamous fan clutch goes out, it will start to make a ticking sound at idle. I thought it was a pulley or the belt, but within a month the fan clutch finally went. Locking up and sounding like my engine was revving too high as I drove. Repair cost vary, but make sure they use the upgraded fan clutch to avoid replacing it again in another 40,000 miles.
Possibly just an adjustment on the rockers. Hydraulic system. Hopefully that's it.
The fuel injectors make the ticking noise you hear at startup, especially when the engine is cold (colder temperatures).
What causes ticking, check engine light, and the check gauges sensor to come on in a 1999 Dodge Durango 5.2L SUV?
the ticking noise is a small exhaust leak close to the exhaust headers or exhaust pipe near the engine.
if ticking noise is in engine, u most likely have a worn hydraulic lifter. check oil for correct volume and viscocity
Try to locate the ticking noise. Is it the engine? Is it ticking when you are driving? When you are sitting still? It could be as simple as a stone stuck in yoru tire, everytime it hits the road it ticks. it could be a lifter in the engine. Try to be more specific as to where and when the ticking happens.
from which part of your engine is the ticking noise coming from. if is the TOP it would most likely be lifter noise.try using a thicker oil.
I have the same ticking noise and it seems to be louder on hotter days. I was told by the service tech it's due to the synthetic oil being thinner. I have my doubts, but that's what they said. Still researching for the answer myself.
your battery is dead
the lifters may need adjusting or replacing. your engine not getting enough oil causes the lifters to make noise. not sure what motor you have in it but if it's an engine where you can tighten the lifters then you can buy a tool for it if you know what your doing
Front hubs my be wearing out.
Bearing noise is usually deeper and comes from farther down in the engine. Lifter noise is more of a ticking and is up in the engine heads.
Possible lifters that are bad that could explain your ticking noise. It should cost you nothing by stopping by an Auto repair shop and have them listen to your engine.
98 Chevy new 383 block 30k, ticking noise from sounds like heads . 210k on heads;
Most likely it's your valves in need of adjustment.
The ticking noises is the lifters slamming into the valves. They are not receiving the amount of oil they require to lubricate properly. Either the oil level is very low or something else is seriously wrong. Continuing to run the engine like this will lead to very early engine failure.
Well if its sort of like a scratchy noise coming from the engine you might want to get your transmission checked out
"Engine temp is low 140 degrees" Bad Thermostat (stuck open) "a ticking noise is coming from the upper part of the engine" Lifters Make a ticking noise, To stop that there are these bags that fill with oil. If you run low on oil the bags don't inflate at you get a clicking. Check you oil level!!! The bags could be bad, the oil supply could be clogged, or something else could be wrong.
it could be the idler puller rubbing on the bearings. we had to replace it on our 2006 Chevy trailblazer ext.
harmonic balance maybe bad
i dont know but would like to know!!!
If its coming from your engine, you may need a valve adjustment..
The ticking sound is coming from the valve lifters. When the oil filter is changed, air is introduced into the system, which causes air bubbles to form in the oil. This causes the valve lifters to "leak down", which is what causes the ticking sound. It can take several days for the bubbles to dissipate. It's annoying, but harmless.
Collapsed hydraulic valve lifter? Rocker arm (valves) need adjusting?