Air sucking sound with air filter installed

610

Asked by Charles Oct 25, 2015 at 04:45 PM about the 1995 Dodge RAM 1500 Laramie SLT RWD

Question type: Maintenance & Repair

Engine will start and RPM will go to 1000 + and come down to 550 or so then
drop and stop; sometimes with a loud sucking sound. IAC was replaced.

3 Answers

65,510

Check seal around IAC and all vacuum hoses. Spray carb cleaner around base of IAC if engine revs up replace gasket or vacuum hose may have come off.

3 people found this helpful.
20

I have explored this problem for a good long while & found, one should turn on the ignition & wate for all the sensor & indicator lights to go off befor befor starting engine, when the sucking sound begins turn ignition off & repete the steps again. Do this every time for about a month & the sucking noise will learn to stop. Still I continue to wate for indicator light to of off befor start up.

2 people found this helpful.

I am not 100% sure but I have the same problem. After reading some other forums I found that unplugging my upstream o2 sensor stopped my car from sucking huge amounts of air and bad idle. Waiting on new upstream o2 sensor now. I also read to go with NTK sensor because it’s OEM.

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