Okay on Nissan Maxima, Me engine shakes while in Idle(i.e. stop at a stop light) is getting ready to overheat?

Question

This is the 1992 Nissan Maxima SE; 209,570 miles on it and

no I did not put Petrol in it....

Answer 1

Engine shaking is normally a result of a rough idle. This can be from things like a clogged injector, a bad spark plug, a cracked plug wire, and worse, a bad valve or out of timing. Running rough could add to the heat, but normally is not a cause of overheating. Good luck.

Answer 2

Many of the other suggestions are good. the problem could be spark plugs, wires, etc. or fuel injectors, or other dirty or old parts. However Vacuum problems are a real possibility, and easy to check. Normally you only notice a vacuum leak at idle because the engine usually runs better once driving.

a vacuum is made from the air rushing into your engine, and many components of your car use this vacuum to operate various components.

SIMPLY: crank your engine up. near the back of your intake manifold, there should be a black hose that is about 3/8 of an inch in diameter. This hose is normally short and attached to 90 degree metal fitting that is screwed into the back of your intake manifold. pull this hose off and your engine will run very rough and even cut off. Before it cuts off place your finger over the hole on the metal fitting. dont worry it is not nearly enough suction to hurt your finger. If placing your finger over the hole makes your engine run better that means you have a vacuum leak somewhere. there are many different vacuum lines in a car so tracing down the hole can be a pain, but just start from that same hose and see if you can find a split in a hose and replace it with one from the parts store.

Answer 3

Injector failure can cause engine shake overheating too? Petrol is this engine diesel? I think your car will cost more to repair than it is worth value wise. Injectors 175 each x 6 then labor over 1,000 repair Radiator, thermostat, coolant hoses, fan belts, and water pump add another 1,000. Any possible engine internal repair. Head gaskets with timing belt engine seals add another 2,500. The problem is very high miles cars is when there is a failure all the other worn out parts haunt the mechanic. If I take your intake off to get at the fuel injector I remove 4 small coolant hoses that are 15 years old then cause a coolant problem. Wouldn't you look great in a new car!

Answer 4

First, to check the overheating, see if your fan is working properly. Second, as to the low idle chances are that the wire going to your accelerator has stretched over time and your idle speed may just need a little adjusting. good luck

Answer 5

Check your motor mounts.

Answer 6

try adjust your accelarator.