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96 Jeep Grand Cherokee-Son had to slam on brakes to keep from hitting a vehicle and now the Check Engine Light is on. What would do that if you have a new exhaust system and catalytic converter too?
Wiki User
∙ 15y ago
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Wiki User
∙ 15y ago
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Why is there a loud crack crack crack like a stone hitting metal from the back of the car near the exhaust when the engine is turned off and cooling down?
Your hot exhaust is cooling down and the metal is making a ping sound, chances are though, that your exhaust is possibly getting too hot, or has some loose components inside or bolted to it. If your exhaust rattles at all, you may need to replace the muffler, and if you car has a trouble code related to misfire, or catalytic converter there may be too much fuel in the exhaust and is too hot.
Will your exhaust system start smoking if your transmission is leaking?
yes, if the trans fluid is hitting the exhaust, but not out of the pipes coming from the outside of the pipes.
How you stop the exhaust hitting underneath of the car?
Buiy a universal hanger and install to hold exhaust system in desired location Buy a universal hanger and install to hold exhaust in desired location
Whats the problem Peugeot 106 no oil in the engine and the pistons bent all the exhaust valves changed the 4 valves and the pistons are still hitting the exhaust valves and the valve timing is right?
your timing can not be right
What objects make loud sounds?
there are more..but what i can think of at the moment would b a hole in the exhaust,, or perhaps the exhaust breaking off from the manifold....worn cv joints, fan out of balance and hitting against sumthing
What could be causing a rattle on a 1985 Mercury Topaz when idle?
Something loose? Exhaust pipe rattling/hitting on something? You'll have search it out.
My engine light is blinking in my 2001 town and county minivan. i can also smell the catalytic converter. any ideas whats going on?
The check engine light will blink when you're engine is misfiring. The smell from the cat is raw(unburned gas) hitting it....which can cause some pretty bad smells and also ruin your cat. Sounds like you need some plugs and wires.
Your 1992 Subaru legacy has an oil leak and you dont know where from?
Is the oil leaking and hitting exhaust? if so it is the o-ring in the oil pump. Subaru is known for that!
1998 Chevy malibau with 79k it shakes an rattles the mirrors when at a stop just had a complet tune up what could be the problem?
if it is an automatic,clutches are are hitting to hard. check the torque converter switch. tcc could be bad!!
What is effect of a weak valve spring?
It will not close quickly or completely, on intake it will cause loss of compression and backfiring, on exhaust also loss of compression. There may also be some noise from piston hitting valve, and possible damage.
If your 95 Chevy Cavalier 2.2 is not firing on 2 cylinders and you have replaced coils and the ignition module what else can you try?
this is a tough one and doesnt have a definite answer. my first answer would have been spark, but if you've replaced most of the ignition, that shouldn't be a problem. it may still be the plugs or the wires, which you didn't specify replacing. i would first test spark on all 4 cylinders with a spark tester. you can get them from most auto parts stores and they can tell you how to use them, or you can see my other answer to someone's question about replacing plugs & wires to fix ignition problems. my second answer would be compression. try testing your compression on all 4 cylinders. you can usually rent or do loan-a-tool thru autozone or advance/schucks/kragen auto parts to get off cheaply on doing this. you may find that 2 or more don't have adequate compression for proper firing. third would be fuel. if your smell a strong fuel odor, it may be that your injectors are cracked or not properly sealed, or the wires or connectors are bad and the injectors aren't functioning at all( = no fuel). another possibility (and a relatively remote one) is that your catalytic converter has melted or broken components inside and is restricting exhaust flow, causing a backflow or incomplete exhaustion of the cylinders, resulting in a misfire (another symptom of this may be that the misfiring cylinders are not always the same ones). try hitting your catalytic converter gently with a fist. if you hear a rattling inside the cat., i would take it to an exhaust shop and have it looked at or replaced. hope it helps!
What would cause a rattling noise when you accelerate on a 1997 Ford Explorer?
This is a possible cause: Halfway through the exhaust system you have a "catalytic converter". The converter has a heat shield over it. It's just a piece of thin metal that is not absolutely necessary to the operation of your vehicle. They usually rust out where they are connected to the converter. Then when you accelerate, it rattles like a piece of light metal hitting heavier metal. You can spend a lot to have the shield replaced (Waste of money)or you just crawl under the vehicle and bend the shield back and forth until it breaks off. Even most mechanics do this. The whole purpose of the shield is to try and deflect some of the heat from the converter...ie...when you drive into a pile of leaves or really tall grass, the converter won't ignite the leaves.(converters get very hot) The shields are pretty useless and I think they were designed to make us crazy once they get rusty!! Hope this helps!AnswerThe above answer sounds right, but on my 97 explorer V8 the same rattling ocurrs when accelrating, especcialy when the engine is cold,due to a faulty exuast flange coming off the engine`s right manifold.this part can be seen by looking behind and near the top of the right front tire.To verify if this is the problem,start the truck when the engine is cold,and the hood open,and the truck in park,have someone step on the accelerator while you lisen to the engine, if the rattling sounds like its its coming from the right side of the engine , that's the problem.
