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Electronic Gremlins - Electrical Problems That Are Driving You Crazy

1159 messages,  Last post on May 20, 2013 at 10:01 AM

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What is this discussion about? Electrical

    

Messages Page 109 of 116

#1080 of 1159 Re: Fuse Panel - 2000 Buick Century [kiawah] by 2000buickrehab

Sep 29, 2009 (10:58 am)

Replying to: kiawah (Sep 29, 2009 10:44 am)
Pulled and checked all 3 fan relays from the fuse panel in the engine, all 3 "clicked" when powered, even bought a brand new one to cycle through, still nothing. I am going to go back and start at the fans and follow back through the connectors and harness until I start getting some current somewhere. Thank you for the assistance.

#1081 of 1159 Re: Fuse Panel - 2000 Buick Century [2000buickrehab] by kiawah

Sep 29, 2009 (11:01 am)

Replying to: 2000buickrehab (Sep 29, 2009 10:58 am)
If you have 3 fan relays, then I would expect the logic to be where one of those relays connects the fans to be in series for low speed, and then in parallel (or direct power connect) for high speed.

#1082 of 1159 Re: Fuse Panel - Buick Century 2 [kiawah] by 2000buickrehab

Sep 29, 2009 (11:04 am)

Replying to: kiawah (Sep 29, 2009 10:57 am)
KIAWAH, thanks for the recommendation. I have the 3 volume service manual for the 2000 Regal/Century, straight from GM, however, I have issues with following any schematics in there becasue the first few exploded engine diagrams were mislabeled and some components completely missed. The Haynes manual has too little information to be of much assistance with this issue.

#1083 of 1159 Re: Fuse Panel - Buick Century 2 [kiawah] by 2000buickrehab

Sep 29, 2009 (11:07 am)

Replying to: kiawah (Sep 29, 2009 10:57 am)
New battery went in 2 days ago, was a little surprised to find the prior one to have less than 10 volts with a dead cell, it was less than 2 years old, stuff happens.

#1084 of 1159 Re: Fuse Panel - Buick Century 2 [2000buickrehab] by kiawah

Sep 29, 2009 (11:14 am)

Replying to: 2000buickrehab (Sep 29, 2009 11:04 am)
Perfect,
 
I've always bought the factory service manuals as well for my GM vehicles. I haven't seen the problem you reference with mis-labeling, so not sure what to expect with that.

#1085 of 1159 96 Range Rover 4.0 Electrial problems by zoot1

Oct 29, 2009 (12:41 pm)

I have a 96 Range Rover SE 4.0 ac,at,4x4 pb,pw, etc. I was haveing trouble with it being underpowered and running rough, I did an ohm check on the plug wires they were ok then did a spark test from the coils, the two of the coils on the drivers side both were bad no spark at all the after futher inspection I could see that they were heat warped. I replaced with a complete coil pack 4 coils fixed a couple Exhaust leaks put it back togeather did a test drive it died, a complete loss of power I replaced the20amp main electrial fuse went back and checked the coils again and the same ones in the new coil pack were melted down same as before and the vehical still ran rough as before ? can anyone give me some insight ?

#1086 of 1159 Help me/girl mechanic by sosteen

Aug 31, 2010 (2:55 pm)

I have a 1980 Toyota Corona that has been dying on me while driving. I have replaced the ignition coil, plugs and wires, alternater, checked distributor cap and the pick-up coil. It seems to die when it gets hot or I run the A/C and will not start again for usually 15 minute, sometines longer. When it does this there is no spark coming from anything.Does anyone have any suggestions about what this could be?

#1087 of 1159 Re: Help me/girl mechanic [sosteen] by kiawah

Aug 31, 2010 (3:13 pm)

Replying to: sosteen (Aug 31, 2010 2:55 pm)
I don't have a set of electrical schematics for that vehicle, and if it were me that's where I'd start.
 
You'll have to meter out some circuits, when you have a failing situation. Verify that the keyswitch is good, any relay's that are in the circuit, eliminate any aftermarket security systems, and verify that you are getting power to the distributor, etc.
 
Don't throw any more parts at it, until you figure out where the problem really is.

#1088 of 1159 Re: Help me/girl mechanic [sosteen] by Mr_Shiftright HOST

Aug 31, 2010 (3:16 pm)

Replying to: sosteen (Aug 31, 2010 2:55 pm)
Hmmm...no spark with a very hot engine? I'd have to say if you're sure about no spark then you haven't checked the ignition components correctly. You might get yourself a simple spark tester to make sure you are losing spark; also you can squirt some starter fluid into the air filter when it fails to start, and if it kicks over for a few seconds, you have a fuel problem not a spark problem. What kind of voltage are you getting on the positive side of the coil? should be 12V. How about the negative side of the coil? Is that properly grounded?

#1089 of 1159 Re: Help me/girl mechanic [Mr_Shiftright] by sosteen

Sep 03, 2010 (4:07 pm)

Replying to: Mr_Shiftright (Aug 31, 2010 3:16 pm)
This is in response to the question I previously asked about a 1980 Corona with no spark. If a electronic ignition control module was the problem would it just quit or would it be intermittent? Could the ballast resistor be bad and would it be working intermittently if so? Thanks again for your help

Messages Page 109 of 116

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