Why does my car run rough on cold start?
But on a cold morning normal exhaust can look the same way for a few minutes will the vehicle warms up. The fact that your problem goes away when the engine warms up could mean the problem is in the Cold Start Injector circuit. The injector could be clogged, the CSI relay could be bad, etc. You can do it yourself, but I wouldn’t jump to that yet.
Why does the exhaust smell sweet on a cold start?
If you have a blown HG and are burning coolant, the exhaust will be white and smell sweet. But on a cold morning normal exhaust can look the same way for a few minutes will the vehicle warms up. The fact that your problem goes away when the engine warms up could mean the problem is in the Cold Start Injector circuit.
Is there a cold start injector on a 5vzfe engine?
I haven’t come across a dedicated cold start injector on the 5vzfe engine…but I know the 3.0L 3vze engine had one. Another thing is that the MAF sensor may be dirty and could probably use some cleaning with some MAF sensor cleaning spray you can pick up at the auto parts store fer under $10.
When is a head gasket failure bad news?
A head gasket failure is bad news, very bad news, and will require immediate attention. A head gasket can fail in a number of different ways (coolant leak, oil leak, loss of compression), some of which we told you about recently, and all of which are bad news for the engine.
Can a blown head gasket cause an oil leak?
If a head gasket has failed between the water or oil passage and the outside of the engine, the result can be a simple coolant or oil leak. This is the least dire version of a blown head gasket, but still serious.
How long does it take to replace a blown head gasket?
Replacing the gasket can take anything from six hours to a few days, depending on the severity of the failure. A blown head gasket is one of the biggest failures your car can suffer, and to fix it properly takes time. How much does a new head gasket cost?
How can you tell if your car has a blown head gasket?
The bubbles are exhaust gases that force their way into the cooling system during the combustion process. An easy do-it-yourself test for a blown head gasket is to perform a chemical test using this type of tester on your coolant to check for the presence of exhaust gases to see if this is happening in your car.