Question about 1992 Mercury Grand Marquis
Hi my name is David i'll be Assissting you today:
#1) If you have'nt recently changed your Fuel Filter, I recommend trying that 1st.
#2) If you have then get A FREE scan at almost every Auto Part Store.
#3) See if and what codes come up, Being a older model they will have an adapter to read your EMC codes.
#4) It sounds like Either your Throttle position sensor is Bad or Faulty.
#5) If not i would say your Fuel Pressure Regulator is Bad.
I hope this helps solve your problem, Please let me know how i helped you,By voting for me. on the Quality of my Solution.
Thanks for Using FixYa From: d_hubbs
Posted on Aug 23, 2010
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Posted on Jan 02, 2017
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