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sputtering engine

Sent to Car Experts August 22 04:10 PM

after driving car for awhile car starts sputtering.if you
put any pressure on gas petal car sputters like not getting gas. can turn car off and let cool down and start car again and motor runs good until motor warms up.

Customer (name blocked for privacy)
Status:  Closed   Value: $5
Answer
August 22 7:27 PM (3 hours and 17 minutes and 2 seconds later)
         
ACCEPTEDCheck Mark

You need to first test a few functions during the failure.

1) Test for spark at the plug end of the wire using a spark tester.
2) Test for injecter pulse using a small bulb called a noid light.
3) Use a fuel pressure gauge to test for correct fuel pressure.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.


You could have a plugged catalytic converter, but you need to check these things first to know which way to proceed.

Here's what the noid light looks like.

Images available only to Customers.

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