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post #11 of 22 (permalink) Old 10-31-10, 08:57 AM
2002 F150 XLT
 
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Re: Flunked CAL SMOG pretest!

If it's running okay, you can leave it alone. They do run better cleaned because they get coated and don't sense the air movement that it would clean.


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post #12 of 22 (permalink) Old 11-01-10, 08:26 AM Thread Starter
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Re: Flunked CAL SMOG pretest!

Oops! Drove it yesterday, and a few small stumbles occured!

Back to square one!
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post #13 of 22 (permalink) Old 11-01-10, 10:06 PM
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Re: Flunked CAL SMOG pretest!

Hi, two more things; Since you drove it and the engine moves because the motor mounts flex, did it pull the air tube cracks open again. If so you need to replace it. Are you using a paper air filter or a K&N type? The type that you oil, can and has, effected the MAF sensor because excess oil gets on the wire.

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post #14 of 22 (permalink) Old 11-02-10, 02:15 PM Thread Starter
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Re: Flunked CAL SMOG pretest!

I have a paper air filter.

I will replace the air tube.
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post #15 of 22 (permalink) Old 11-02-10, 02:36 PM
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Re: Flunked CAL SMOG pretest!

Have you tested / checked ignition leads ?
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post #16 of 22 (permalink) Old 11-06-10, 08:44 AM Thread Starter
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Re: Flunked CAL SMOG pretest!

Yes, I checked the ignition leads by inspecting at night, looking at them with engine running. No arcs.
Did you mean pulling the plug wire out aand testing the resistance?
I can do that, if needed. They LOOK OK.
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post #17 of 22 (permalink) Old 11-06-10, 09:35 AM
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Re: Flunked CAL SMOG pretest!

The resistance should be about 5k per ft. They don't have to look bad to cause problems.

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post #18 of 22 (permalink) Old 11-09-10, 06:28 AM Thread Starter
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Re: Flunked CAL SMOG pretest!

Buddy checked the plug wires and found a few were loose. Car has more power now, but still stumbles at same places while driving.

Buddy thought it was the throttle control sensor causing the stumble.
What do you all think?
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post #19 of 22 (permalink) Old 11-09-10, 08:39 AM
2002 F150 XLT
 
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Re: Flunked CAL SMOG pretest!

They can cause a stumble but to test them, you need a scope or a meter that can hold memory. The only way to find out otherwise is to replace it and see if that helps.

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post #20 of 22 (permalink) Old 12-12-10, 08:18 AM Thread Starter
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Re: Flunked CAL SMOG pretest!

GOT IT FIXED!

Friend mechanic helped me.

As I had suspected, the plugs were installed poorly by the first guy.
3/4 had cracked insulators! He had torqued them in so tight, it had cracked them, also had dropped 2 plugs! Also, busted tip on the boot on # 1.

So we put in 4 new irridium plugs, new plug wires, and a new gas filter. VOILA! Runs like new!

However, the air hose is cracking at the other end, will replace.
Struts are bad, alignment is off, and front tires screaming for mercy, and wearing fast!

The headlamp is coming apart again, the silicon didn't hold it toghether for long, any ideas on how to glue it back togheeher?

The old gas filter had some tiny silvery particles dropping out...does that mean that the fuel pump is going out?
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