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hesitation then takes off like a bat out of hell.

2K views 7 replies 5 participants last post by  Eldobroken 
#1 ·
Getting a lag or 1-2 sec hesitation out of my 2000 eldo etc as well as my 00 seville. On the seville I did a few wot's and it went away. On the eldo I just put a new fuel pump oem part and a full tank of super. Also filter is new also. When i mash the throttle I get a break up lag then spins the wheels and runs great. Any Ideas? Also I did not get gas from the same stations so i do not think that is a problem. Any ideas Guys i have 90K miles mabye time for a tune up. BTW air filter and oil are new also. Engine Idles so good you do not even feel it and runs great but the hesitation is bugging me. Thanks,
 
#8 ·
Have you checked the codes? On my 2000 STS I had the same problem, and it was a faulty MAP sensor. Could be the same problem on your cars.
I will check codes today. The tranny shop just put some new CV joints in due to one breaking when these idiots were driving the car, Yeah I was pissed. But if they added tranny fluid it is possible they messed up the wires to the mass air flow sensor although they look fine.
 
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