Question about 1999 Ford Explorer
I have a 1999 ford explorer 2 door sport with 4.0 v6 with 4x4. My problem is I went to the gym and came out and it would turn over but not start. I pulled a plug wire and I am getting good spark . I sprayed some starting fluid into air intake and it still didnt start. went back today to try to start it . still turns over but wont start. my next move after I tow it home is remove a plug and check for compression. and will check valve on rail to see if im getting fuel . it smells like im getting fuel. but not sure yet. it has just under a 100,000 miles could it be timing chain or cam or crank sensors
Honestly it's probably just dirty spark plugs. Did you pull any of the spark plugs and inspect the tips for build up? A couple things to remember:
1.) If the timing chain broke, the valves wouldn't be opening so you wouldn't have any air coming out of the exhaust during crank. You said it smells like you're getting fuel, so I'm assuming that means you're smelling the exhaust fumes, right?
2.) The crank sensor tells the ignition system when to send a spark to the plugs. If you're getting good spark, it's unlikely that the crank sensor is faulty.
If it's too soon for spark plugs to need replacing, check your sensors. A faulty oxygen sensor for example could cause your engine to run 'rich', resulting in faster crud build up on spark plug tips.
Posted on Feb 12, 2009
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