2002 Mitsubishi Galant stumbles and rough

Tiny
BALLBALL
  • MEMBER
  • 2002 MITSUBISHI GALANT
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 169,243 MILES
When I first start the car it runs good but then like 2 mins later it stumbles runs roughs like if its missing bad then it do that for like 20 sec then clears up it do that every morning or if I let the car sit for more than 20 minutes I clean the throttle body new plugs and wires twice put on a idle air control vale and tps sensor still doing the same thing what could it be
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Saturday, January 10th, 2015 AT 7:58 PM

8 Replies

Tiny
HMAC300
  • EXPERT
Scan for codes and check fuel pressure with a gauge first auto parts rent it.
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Sunday, January 11th, 2015 AT 8:22 AM
Tiny
BALLBALL
  • MEMBER
HMac300 I had took it to get the codes check even there wasnt no CEL and there was no pending codes as well but like I was saying it doesnt buck when drive or anything shift good and all
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Sunday, January 11th, 2015 AT 8:17 PM
Tiny
HMAC300
  • EXPERT
What was the fuel pressure read with a gauge?
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Monday, January 12th, 2015 AT 7:40 AM
Tiny
BALLBALL
  • MEMBER
It Read 27 lbs
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Monday, January 12th, 2015 AT 8:18 AM
Tiny
HMAC300
  • EXPERT
Minimum fuel pressure at idle is 39psi w/vacuum w/o vacuum at regulator it's 47-50 sounds like the pump is you r problem.
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Monday, January 12th, 2015 AT 9:38 AM
Tiny
BALLBALL
  • MEMBER
When I went to the Mitsubishi site it said 27 was good and 39 on up was a bad regulator or pump
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Monday, January 12th, 2015 AT 9:45 AM
Tiny
HMAC300
  • EXPERT
Well we go by manual and what it says is supposed to be i'v egiven you the correct figures
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Monday, January 12th, 2015 AT 9:49 AM
Tiny
BALLBALL
  • MEMBER
Your rite
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Monday, January 12th, 2015 AT 9:50 AM

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