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When I crank truck it runs really rough for a few seconds then dies, what could make this happen?

New cam, new lifter, new timing gears and chain, new crankshaft positioning sensor, changed the ICM, and new pick-up coil

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Have you cleaned your throttle body?? sounds like it's doing what mine does from time to time..use brake fluid to clean your throttle body, if that doesn't work, it could be maybe a fuel sensor, or throttle sensor.

Posted on Nov 20, 2014

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Posted on Jan 02, 2017

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SOURCE: 2000 Stratus will not start

There were actually 4 diffrent engines of the same size avaliable for your vehicle. The difference in the engine's was in the way that the flywheel is "clocked". It is very possible that even though the engine is the same size, it still could be the wrong engine. I hate to be the bearer of bad news, but i myself have run into this exact froblem a few times on dodge and chrysler products

Posted on Aug 18, 2008

honeymokey
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SOURCE: have a 1991 buick lesabre 3800 v6, cant get to

Check the ECM if it has the number 1228253 on it, this is what is wrong with it. Gm trashed all of these bad ecms. Get a 16198264 as they do not cause a cutting off problem . Get a delco ecm , aftermarket units will give trouble and may be a rebuilt 1228253 which is junk.

Posted on Apr 17, 2009

  • 14036 Answers

SOURCE: installing timing chain on a 97 chevy c1500 5.7

CAMSHAFT GEAR AT 6 OCLOCK AND CRANK GEAR AT 12 OCLOCK.

Posted on Nov 07, 2009

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SOURCE: have fuel pressure no spark replaced crank sensor

check the ECM fuse also the injector fuses and check the metal main bus breakers and look at the red and orange wire in the fuse panel under the hood and make sure there not burnt in the bottom of the fuse box

Posted on Jan 21, 2010

  • 5280 Answers

SOURCE: 1990 Buick Regal 3.1 has rough idle, hesitates and dies when accelerating.

A lot of new parts! Have a compression test done to gauge the engine's internal condition, and go from there. If compression is good on all 6 cylinders, scan for trouble codes. The compression test may find your problem, something like an exhaust valve burned or not seating properly.

Posted on Oct 24, 2012

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If I had a new timin chain put on my 1994 Chevycaprice with the 5.7 an if they move anything wrong will my car be off timin


A new timing chain will not affect ignition timing unless the chain is incorrectly installed then the whole engine is out of time. Why not state what the problem is instead of a generic question like you posted.

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Ok on cams and on big engine crank they all have either dots or arrows alls u do is line up the small ones on cams ok but if u moved big crank then u must set crank back to dead top center and u do this but pulling out the number one spark plug and putting a screw drive in whole and tap lifter then game some one turn crack until u fill the lifter at the highest point then that's top dead centrr

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87 olds cutlass ciera has spark and fuel but won't start


Have you done a compression check? These engines have a tendency, after 80K miles to shear a tooth off the cam gear. What will happen then is that the crank will spin, but the cam won't. This will cause the cam sensor to APPEAR bad because there is no activity. The REAL problem is that since the cam don't turn, the valves don't open and close, thus no compression. The motor is non-interference so if it did break the cam gear (there is no timing chain), you only need to replace the gear, re-timing the crank/cam as you go. If this happened, you will not have even compression because some valves will stay open, some will stay closed.

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I own a 2004 accent with 122,000 km on it. Long story short, had to get a new head gasket put on, so rocker cover, cams, everything had to come off. Work was done and everything was put back together. I...


P0340 - Cam Timing

SYMPTOMS/CONDITIONS
of a mistimed camshaft system (all must apply):
  1. Camshafts have previously been removed from the engine.
  2. Engine runs rough.
  3. Vehicle sets P0340 (camshaft sensor code).
  4. Camshaft sensor has been checked with a known, properly operating camshaft sensor.

CORRECT:
The diagram in the manuals should show the timing marks on both cam gears to be on the blue timing chain links.

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Mar 23, 2011 | Hyundai Motor 2004 Accent

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I replaced the timing chain in a 2005 potiac sunfire with a 2.2 and now it run rough but runs fin going down the road but idling it run rough and sometimes will die


if the car ran fine befor you changed the timing chain you may have the cam timing off by one tooth retarted. Being the PCM controls the timing advance . The engine smooths out at higher speeds .Start back tracking and looking at the simple stuff . but you may have to pull the timing housing again to check the timing marks on the cam and the crank

Mar 06, 2011 | 2002 Pontiac Sunfire

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Spark plug # 1 ONLY fouls out after a few minutes of running compression o.k., timing o.k.,leak down test good, all new parts except springs and heads, different plugs,wires,distributor cap,rotor coil...


Try and find, first of all, a hotter plug. Second of all, I'd watch your dipstick very close. Add a hotter (210F) thermostat, get it hot quicker. Finally, if all else fails, you may need to put on new valve guides, or check your rings.

Dec 18, 2010 | 1992 Chevrolet K1500

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I have a 1991 motor home with a 454 engine, I have replaced the oil sending unit twice, the distributor cao and bug. The modual test good. It will start and run for about 20 seconds then dies. runs rough...


It looks like you answered my clarification request by posting a new question. Don't do that... keep it here. I inadvertently answered that question, thinking that someone had started a new thread with no information but "My vehicle has a caburetor."

This really sounds like a fuel delivery problem. It sounds like, while the pump is turning slowly during cranking fuel slowly seeps into the float chamber. Then the motor catches, and the fuel flow cannot meet the demand; the float chamber empties, and the truck dies.

I would take the fuel line off the carb, disable the ignition, point the line into a bucket (*like a coffee can), and crank the engine. You should get pretty good flow into the can. If the pump is electric a good steady flow, if operated by an eccentric on the camshaft timing gear (that is, the pump is bolted onto the side of the timing chain cover) fuel in healthy spurts.

My first suspicion is a really clogged fuel filter, and my second suspicion is a bad fuel pump. a hole in the fuel line, cracked hose, etc, can allow sucking air, which can seriously impair fuel flow.

Jun 23, 2010 | 1991 Chevrolet K1500

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