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Old 10-23-2018, 02:25 AM   #61
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Well got the MAF sensor today and installed right now. Took it for a short drive and truck idles at 500 RPM. Doesn't stall but I don't know if this is normal. One thing that I noticed that when I put AC on the car idles really rough and about to stall but it doesn't. I do remember changing idle speed settings under the passenger seat when the truck stalled all the time. Should I change this back? Thanks all I really appreciate all of you!
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Old 10-23-2018, 02:38 AM   #62
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Well got the MAF sensor today and installed right now. Took it for a short drive and truck idles at 500 RPM. Doesn't stall but I don't know if this is normal. One thing that I noticed that when I put AC on the car idles really rough and about to stall but it doesn't. I do remember changing idle speed settings under the passenger seat when the truck stalled all the time. Should I change this back? Thanks all I really appreciate all of you!
Make sure your ignition timing is set to 10 BTDC first. If that's good and you have no codes, then adjust the idle speed.
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Old 10-23-2018, 05:22 AM   #63
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Make sure your ignition timing is set to 10 BTDC first. If that's good and you have no codes, then adjust the idle speed.
Think that good. Don't have one but I confirm that this week. What should be the idle RPM?
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Old 10-23-2018, 05:42 AM   #64
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Juster: Do you have the factory manual on this rig? If not, email me at adventurebooksofseattle AT G Mail and remind me of your year and model.

Difference between Chiltons and the FSM? The FSM runs over a thousand pages, for one thing. And you can blow up pages and print them up. The FSM is God, not Eric Clapton as some people used to say.

Idle speed? You need to go higher. If you are at 500 and kick on the AC, that's probably why it's stumbling. If you are driving along at 30 KMH or higher, and you kick on the AC and it starts missing...then it could be something other than the idle speed, although it should be set to at least 850 anyway. Usual is 850- to maybe 1100. Does it stumble on you when you turn on the AC while cruising?
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Old 10-23-2018, 12:46 PM   #65
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Think that good. Don't have one but I confirm that this week. What should be the idle RPM?
With the Ignition Timing set correctly, the idle should be between 700 and 800 RPM.

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Old 10-23-2018, 02:53 PM   #66
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There's also a solenoid on the throttle body that should kick the idle up when the AC is on. If the idle isn't increasing you may have a bad solenoid or some bad wiring.
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Old 10-24-2018, 10:48 AM   #67
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He needs to cruise down the road and THEN turn on the AC. If it doesn't stumble or start missing...it's probably the low idle speed. When you have AC it's okay to set idle to 850-900. At that idle, kicking on the AC shouldn't mess with the engine too much. You will just use more gas at idle.
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Old 10-26-2018, 01:28 AM   #68
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The stalling is back and runs rough again. Idles at 500Rpm and now not able to idle. I don't have a timing light so I can't check. Anyways to check without one? Also, I checked the Idle screw near the TPS and seems like they have no screw. It looks like a piece of plastic only. I tried turning the AC while driving and not an issue on at idle seems like getting the issue for AC. But it's not able to keep running and sometimes it does but rarely.
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Old 10-26-2018, 01:54 AM   #69
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You should be able to rent a timing light from a local parts store.
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Old 10-26-2018, 01:57 AM   #70
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Quote:
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You should be able to rent a timing light from a local parts store.
Okay, found out they have some black stuff under the EGRC BPT. Think it's carbon or something, not oil for sure. The tubes are really soft. What should I do?

EDIT:
One tube was busted so going to change it and see if that would fix it
UPDATE:
Changed the hose didn't help now engine light flashing. Need some serious help really don't know what to do. New Mass Air Flow Sensor New fuel Injectors New Coolant Sensor New Radiator

Last edited by Juster; 10-26-2018 at 03:56 AM.
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