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I have a 5.7 Oldsmobile diesel engine I recently chance the head gasket because it was running hot it died on me while I was driving now it would not start back up. And everything back together could it be my heads are warped? It is the reason why the 5.7 is not starting up?

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  • Cars & Trucks Master
  • 2,002 Answers

If it was running before you did the head gaskets and now it died and won't start, the problem is not warped heads. Your best bet now would be to pick up a copy of Haynes Diesel Engine Repair Manual, part # 10330. This has an excellent section on the GM 5.7, for repair and diagnosing. The book is about $20 and should be available at an auto parts store.
If this isn't an option it would be wise to take it to a diesel repair shop.

Posted on Nov 09, 2014

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Posted on Jan 02, 2017

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SOURCE: I replaced the head gasket on my 97 Sunfire it doesn't start

If your timing is off you will have no power.check and make sure all timing mark's are correct.Some engine's are contact motor's,which mean's if your timing is off you could cause damage to valve's or piston's.Also you should do a compression test to be sure each cylinder has adequite pressure.Hope this help's.

Posted on Mar 02, 2009

localwonder
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SOURCE: 2000 Sunfire coolant problem. Engine overheating,

ok, its time for a radiator flush. there is major sludge in the internals of this radiator. Make sure the thermostat is in the correct position as well. I've seen many cars come into my shop with the thermostat inserted backwards.

Posted on Mar 13, 2009

  • 5470 Answers

SOURCE: how to replace head gasket and how to put it back in time when assembling back together on 2.4l (quad4) engine??

There will be marks on the cam gear and the crank gear. Some are dots, some are diamond shaped. You just line the two up so the top mark is directly over mark on the crank. You may have to turn the crank by hand which is easier with all the plugs out, to line it up. You will want to drain oil,change filter, and put in new oil to get rid of contaminated oil in oilpan.
If you fail, you are not talking about a lot of money to try to fix the top of the engine compared to engine replacement. For the most part, you could still tow it.
You could ask how much it would cost just to replace the gasket and let someone else bust their knuckles.

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: loud diesel knock nissan terrano II head just replaced.

some black smoke comes out when i put foot down and loses power when goiong uphill i have a nissan mistral/terrano 2.7td

Posted on Aug 20, 2009

  • 4044 Answers

SOURCE: i have 2003 chevy impala

Did you get the timing set correctly when you reattached the cam to the timing chain? It sounds like you didn't have the #1 Top dead center or the cams were in the wrong position when you reset the timing chain. The cam shaft and Crank will actually look like they are set correctly two times. Once when it is in time and once when it is out of time 180 degrees. If you are more than 5 degree out of time or more than 5 degrees from the point where it is 180 degrees out of time the engine normally won't fire at all. The easiest way to check and verify this is to do compression checks on the cylinders, you will find you have little or no compression on several cylinders if this is the case. To correct it remove the timing chain and set the crank to #1 Top Dead center. Then go to the head that is on the #1 side, line the cam up so that both valves are closed for the number 1 and line that mark up. You have to find the firing order to make sure the intake is open getting ready to close for the next cylinder that going to fire and the exhaust valve is closed, then make teh final adjustment to line that cams timing mark up then replace the timing chain. This should get everything roughly within 5 degrees of zero and should get the motor so it will start.

Posted on Mar 02, 2011

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