Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN







Physician heal thyself


  Email This Post



Pokerface77
Novice

Jan 3, 2012, 3:01 PM

Post #1 of 6 (1010 views)
Shortcut
Physician heal thyself Sign In

Odd subject title but background on me. Disabled ASE Master and I can't remember the last time I had this much trouble.

I'm at wits end with this one. My own 2004 GMC 1500, 4.3L auto 2wd exended cab. 165k. Complete tune up in August with Borg Warner parts. Approx. 2 months ago started getting check engine light with P0300. Only code ever. Would feel the miss at around 65-70 for maybe 2-3 seconds and run fine after that. Might occur 2-3 time in 10 miles and might not. I checked the cap/rotor and found arcing so cap/rotor replaced. Worked perfect for about 2 wks and started again. Checked with friend who owns a shop and Alldata showed crank sensor may be the cause. Replaced with no solution. Thinking a high explosive might help tremendously!!Wink Thanks in advance.


(This post was edited by Pokerface77 on Jan 3, 2012, 5:29 PM)


Discretesignals
Veteran / Moderator


Jan 3, 2012, 3:31 PM

Post #2 of 6 (995 views)
Shortcut
Re: Physician heal thyself [In reply to] Sign In

Does your friend that owns the shop have an enhanced scan tool to look at the cylinder misfire history to determine which cylinders are misfiring?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Pokerface77
Novice

Jan 18, 2012, 2:15 AM

Post #3 of 6 (929 views)
Shortcut
Re: Physician heal thyself [In reply to] Sign In

Update to this problem. Howard scanned history misfires. Cyl 4 90k occurances, cyl 3 few thousand. Cam retard 22 degrees. Tech did crank relearn but no fix as yet.

With the arrangment of the cap contacts this would make sence to me if the distributor is worn and shaft rising in the housing or that the timing chain has some play in it. My next step is to remove the cap and see how much slack may be in the timing chain.
Any ideas or advice? Thanks, Tim


Tom Greenleaf
Ultimate Carjunky / Moderator


Jan 19, 2012, 1:54 PM

Post #4 of 6 (915 views)
Shortcut
Re: Physician heal thyself [In reply to] Sign In

OK - saw arching once at dist cap and replaced it. Shaft wear at 165K is a maybe to check and may have caused a problem? You said a new on fixed it for a while so I'd be checking that out again.

Is this engine sludgy at all?

Timing chain lash? You can check that with dist cap off, turn crank bolt and see how far it turns before rotor turns as a clue. Shouldn't turn much - say 5-6 degrees is too much for my liking. Not sure if the dumped using nylon cam gears that even with real care oil changing still can wear out and jump around but with more regularity.

If you mist cap, wires can you make it/them arc visually or cause a skip?

Just some ideas to check,


T
_________________________________________
Long retired now


Pokerface77
Novice

Jul 19, 2012, 4:55 PM

Post #5 of 6 (580 views)
Shortcut
Re: Physician heal thyself [In reply to] Sign In

Sorry for such a late reply/repair but here goes. Finally took truck to the shop, ask for the timing chain to be replace because of a slight difference between the crank and distributor. After this, no change. OK, my bad but lets figure this thing out...The mechanic(?) spends a day checking it out, says it needs fuel injectors, (can't replace just one on this model. Idles fine, down the road great. Check engine comes back on going home with the same code. He tells me "drive it a couple days, lets see if it learns itself."

Three days later and about 200 miles, accellerating up a slight hill, it just pops!!! and dies. Tow it back, just a little upset at this point, just spent $800 (I know $300 is my goof up). Half of the gears on the distributor are GONE.

I was friendly with the owner as he was a competator yrs ago. Will replace the dist if I'll go get it. No problems for 5 months. Now I'm still wondering if something could be wrong with the cam because of the wear on the dist gear. Any thoughts??

Thanks, Tim


nickwarner
Veteran / Moderator


Jul 19, 2012, 6:12 PM

Post #6 of 6 (572 views)
Shortcut
Re: Physician heal thyself [In reply to] Sign In

The cam gear is hardened steel. I believe (someone will surely point it out if I'm wrong) that the distributor gear is bronze. The soft metal gives first without damaging the more expensive cam, a sacrificial lamb if you will. Thanks for posting the fix.




Physician heal thyself


  Email This Post
 
 






Latest Forum Post
Hi. Here's my problem,my daughter has a used Toyota Corolla CE(151,256 miles) sh...
1999 Chrysler Town and Country 3.8 liter 225000 Hard starting for last c...
I have a 1999 Ford Escort SOHC....I was driving down the highway and it started ...
Recently I bought a 1987 Chevrolet Blazer K5 in decent shape. The windshield app...
While my dad was driving he saw the oil light on so he stop buy a auto shop and ...
Hi , I have 1993 infiniti G20 with 215,000 miles. I am going to buy a fuel inje...

Feed Button


Used Car Search
Used Car Price Ranges:
Under $5,000
$20,000
$35,000

$10,000
$25,000
$40,000
$15,000
$30,000
$45,000
Over $45,000
Search used Cars By Manufacturers:
Used Acura
Used Audi
Used BMW
Used Buick
Used Cadillac
Used Chevrolet
Used Chrysler
Used Dodge
Used FIAT
Used Ford
Used GMC

Used Honda
Used Hyundai
Used Infiniti
Used Jaguar
Used Jeep
Used Kia
Used Land Rover
Used Lexus
Used Lincoln
Used Mazda
Used Mercedes-Benz

Used MINI
Used Mitsubishi
Used Nissan
Used Porsche
Used Saab
Used Scion
Used Subaru
Used Suzuki
Used Toyota
Used Volkswagon
Used Volvo
2010 Honda Civic
$15,770
2004 Jeep
$8,991
2012 Mustang
$22,990
1997 Honda Cr-V
$4,490
2010 Toyota Prius
$17,496
2010 BMW 328
$26,980




Automotive Forum Categories
Automotive Repair
Auto Body Repair and Refinishing
AC Auto Repair Help Forum
Automotive Wiring and Electrical

Auto Insurance and Car Financing
Automotive World
Brake Systems
Car Stereo Repair Advice
Car Troubleshooting
Engine and Car Noises
Engine Fault Codes
Engine Troubleshooting
Exhaust System Repair

Steering and Suspension
Tricks of the Trade
General Discussions
Car Shows and Events
The Bargin Bin
Motor Vehicle Inspection
Car Care Tips
Traffic Ticket Help
Car Racing

Gasoline, Motor Oils, Concept Cars
Remote Control Cars and Vehicles
Truck Repair
Truck Repair Advice


Truck Engine Repair
Truck Suspension Repair
Motorcycle Repair
Motorcycle and ATV Repairs

Motorcycle Body Repair
Motorcycle Clutch Repair
Motorcycle Engine Repair
Motorcycle Seat Repair
Car Forum Posts - Sitemap


Search for (options) Privacy