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my mom has a 2001 Mitsubishi Galant with stumbling idle, I
Sent to Car Experts July 17 07:50 PM

My mom has a 2001 Mitsubishi Galant with stumbling idle, I have changed the pcv valve and the problem is still there, what do you suggest my next few steps should be.

 

Optional Information:
2001 Mitsubishi Galant 4 cyl

Already Tried:
replaced the pcv valve.

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Info Request
July 17 7:55 PM (4 minutes and 57 seconds later)
         
REPLIED to Info RequestCheck Mark
Does it stumble under acceration?

Dooes it do it all the time, warm, or cold?
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
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Reply
July 17 8:02 PM (6 minutes and 56 seconds later)
         
Reply to amedee's Post: No, it does not stumble under acceleration.It does it cold and hot. When you start the car it idles fine for about 30 to 40 seconds and then it begans to go up and down slightly. After the car is put into gear the symptom reappears only when the car is put in park or when you come to a stop withthe car still in gear.
Customer (name blocked for privacy)
Answer
July 17 8:08 PM (5 minutes and 37 seconds later)
         
REPLIEDCheck Mark
Is this car equipt with a mass air flow sensor?
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
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July 17 8:10 PM (2 minutes and 22 seconds later)
         
Reply to amedee's Post: It should be for the year it was produced, but I can not say for sure.
Customer (name blocked for privacy)
Answer
July 17 8:12 PM (2 minutes and 24 seconds later)
         
REPLIEDCheck Mark
Look by the air filter. If there is a sensor right off the air cleaner box, than thats it.
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
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July 17 8:19 PM (6 minutes and 23 seconds later)
         
Reply to amedee's Post: yes
Customer (name blocked for privacy)
Answer
July 17 8:40 PM (20 minutes and 51 seconds later)
         
REPLIEDCheck Mark
OK Look for cracks or rips on the plastic air snorkle where air can get in past the sensor. If there is ANY, this is your problem, the snokle must be replaced. Take your time and look carefully. Let me know.
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
ADVANCED LEVEL SPECIALIST
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July 17 8:51 PM (11 minutes and 29 seconds later)
         
Reply to amedee's Post: Have looked there are no cracks.
Customer (name blocked for privacy)
Answer
July 17 8:55 PM (3 minutes and 29 seconds later)
         
REPLIEDCheck Mark
I would check the fuel pressure regulator. It is round, about a quater size and has a vaccum line going to it. If the regulator is leaking gas than it can cause this problem. Pull off the vaccum line that goes to the regulator. Be absolutly sure there is no gas in the vaccum line. If there is, the diaphram has ruptered and there is gas entering the engine that is not accounted for and the regulator will need to be replaced!
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1130 Car Accepts
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July 17 9:28 PM (33 minutes and 3 seconds later)
         
Reply to amedee's Post: there was no leaking.
Customer (name blocked for privacy)
Answer
July 17 10:39 PM (1 hour and 11 minutes and 10 seconds later)
         
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July 18 11:53 PM (1 day and 1 hour later)
         
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