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Running rough.

Tiny
SAGARNAGA
  • MEMBER
  • 1992 CADILLAC FLEETWOOD BROUGHAM
  • 150,000 MILES
My 92 brougham 5.0 has been running rough. So far I've changed the following: fuel pump. Fuel pump relay. Fuel filter. Idle air control valve and connector. Map sensor and connector. Throttle position sensor and connector. Coolant temp sensor and connector. Coolant temp switch. Both fuel injectors with a throttle body rebuild kit. I'm running out of money and the car is still running the same. Surging. Rough idle hesitation and stalling. Pleeeaaaaaaase help.
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Saturday, May 11th, 2013 AT 6:34 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Lets back up and start with basics. Do a compression test to make sure the motor is good.

Roy
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Saturday, May 11th, 2013 AT 6:54 PM
Tiny
MAXIMILIAM
  • ADMIN
  • 436 POSTS
Reply from Sagarnaga via email:

I forgot to mention I changed the injectors and put a TB rebuild kit on it and a day later it started running great. The car ran good for bout three weeks, then I drove down to phx for the weekend and two days after I returned home it started running bad again. Could it be a bad throttle body or the fpr?
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Wednesday, June 12th, 2013 AT 12:50 AM

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