macarchie
New Member
- Joined
- Sep 7, 2007
- Messages
- 18
- Reaction score
- 0
- Points
- 0
- Location
- Virginia
- Vehicle Year
- 1991
- Make / Model
- Ford
- Engine Size
- 3.0
- Transmission
- Manual
My 3L 2wd (+180k miles) failed the VA emission test the other day. The shop wants $800 for a "major tune-up" which they say includes new plugs, wires, distributor cap and fuel filter. They also said they would adjust the timing. I told them no. The truck is running great and I don't want to mess around with something that ain't broke. I went to stick my timing light on it, but couldn't find the timing scale. (the little reference marks that are usually located beside the front of the crankshaft on the driver's side). Any idea where this scale is? I'm the original owner and have never had to have the timing set. The book says the base timing is set at the factor and the timing advance is controlled by the ICM. Which means it should never need to be touched - unless it is removed which it hasn't been.
I'm going to replace the air filter and PCV. Also put in some injector cleaner. The test results indicated that the O2 sensor and cats were working okay. Any ideas? What else needs to be changed. Do the plugs need to be changed even if it is running good?
Thanks for any help...
- Jimmy
I'm going to replace the air filter and PCV. Also put in some injector cleaner. The test results indicated that the O2 sensor and cats were working okay. Any ideas? What else needs to be changed. Do the plugs need to be changed even if it is running good?
Thanks for any help...
- Jimmy