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1990 Ford Aerostar 6cyl will not idle evenly at cold or hot start, yet ...?
after driving a few miles, idle holds. I changed the fuel filter, no improvement. It did need a clean filter and I replaced it carefully with owner service manual instructions. This is a new problem; everything else has been fine. Just rough, choppy idle after engine starts that got worse in about 1 month time. I haven't driven it since fuel filter unmprovement. Sound advice and suggestions (with source of knowledge or experiences please), ideas to consider, or a solid solution will all be appreciated!
2 Answers
- Vulcan 1Lv 51 decade agoFavorite Answer
There are so many things that could cause this.
The first thing I would suggest is have it scanned.
Could be a fast idle sensor,O2 sensor or throttle Body
Have you tried changing the plugs and wires.
Hmmm,they just don't seem to last like the old ones.
Maybe that should be done first
Plugs and Plug Wires.
Then I would suggest the Fast Idel Sensor
But to save you some money from trial and error get the engine scanned at your local garage.
- ?Lv 45 years ago
properly i might ought to assert that ' wager ' is your superb wager. It sat for a 365 days before you got it, and you have had it for a minimum of a one million/2 365 days. try doing a good song up. Like : plugs / wires / cap + rotor ( if equiped)/ air clear out , even an oil exchange, and upload some gas line a/f . sparkling your battery terminals and verify your coolant strenght. in case you probably did that , then maximum in all probability that van might initiate on the 1st try
