I have replaced the tranny fluid and filter and also the transmission modulator. This did not help and the idle is still erratic. I also replaced the distributor cap and rotor as well as the EGR valve and air filter. I tried to time the engine by disconnecting the spout connector but this made the timing light not function at all. It works fine with the spout connector connected but not with it disconnected. So how am i supposed to deal with the engine idle to even be able to ***** the tranny issue? Please help!
Unless you have the codes read to find which sensors are not working then you will be just wasting money chasing your tail. Have the codes read and that will indicate where the problem/s lie.
SOURCE: 1989 ford f150 w/ 5.0 liter..... engine light on
I would check the oil pressure of the engine. The reason is the timing chain tensioners are run with oil pressrue. I think your timing chain tensioners are leaking down when engine is getting to operating tempature . The oil is thinning down as warms up , as it should to lubercate . I would check compression and do a cylinder leak down test on all the cylinders. Then if the compression is good and the cylinder leak down is good. I would change all the timing components, ( chain, timing gears, timing chain tensioners )
Good Luck , I hope this helps.
SOURCE: no power rough idle car stalls strong exhaust smell
have you done a reaaly good tune up on the car? I would suggest replaceing the idle air control valve first, the a really good set of plugs and wires. I would also reccomend that you check the fuel regulator to be certain it is getting the required vacum to operate the release valve and let the fuel flow back into the tank.
SOURCE: ford truck f250 v8 motor idles high
the vacuum leak that causes this high idle is the gasket at the bottom of the upper intake manifold runners, they **** in, done 100's. to confirm this just spray carb cleaner at inside and outside base, when u hit the leak you will hear it. see photo.
SOURCE: Ford EEC-IV Ignition Problem
if you have a set of noid lights check for injector pulse if you do not have pulse and no spark you have a bad pick up (hall effect sensor) inside the distributor this also would account for your prior problem with your timing because this pick- up (hall effect sensor) if it starts to short internally can effect ignition timing and missfires and also for the voltage changes
SOURCE: I have a 2001 Ford Escape xlt V6 3.0L engine.. I
hope this helps,Tim:
http://www.obd-codes.com/p0401
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