Question about 1989 Chevrolet C2500

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1989 Chevy C2500 starts but runs rough. Distributor removed and reinstalled.

Engine runs but not as smooth as it was before distributor rebuilt and reinstalled. Is it possible for it to run 180 degrees out?

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Posted on Jan 02, 2017

  • 178 Answers

SOURCE: Running "rough"

I had the same issue with my venture. It turned out to be the number 5 plug wire, backside of engine ended up breaking out of the plug carrier and burning in half on the manifold. Your best bet is to trace all the wires to start off with and change the plugs. If that doesn't help, it may be internal. Good luck

Posted on May 15, 2008

  • 341 Answers

SOURCE: 1989 chevy 350 automatic, white smoke

white smoke is antifreeze try checking the compression

Posted on Nov 08, 2008

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SOURCE: 89 Chevy C1500 4.3L engine won't start after rebuild

replace fuel pump inside tank

Posted on Jan 03, 2009

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SOURCE: 1990 chevy 350 distributor wiring diagram and firing order

The firing order is 1-8-4-3-6-5-7-2.
The distributor rotates in a clockwise direction. The engine must be on the compression stroke on the #1 cylinder. Line up the timing marks. Remove the cap and the rotor should be pointing to approximately the 5 o'clock position.

Good Luck

Posted on Mar 06, 2009

  • 4669 Answers

SOURCE: 1987 Chevy Blazer Vortec 4.3 engine.

What is the 8th digit of the vin?

Posted on Jun 06, 2010

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I am puzzled over how this bent your engine valves, as these engines are "non-interference", that is, the pistons should not contact the valve heads in the event of a snapped timing belt.

Well, you have a rebuilt engine, so..... an engine which backfires and will not start is almost certain to be mistimed, that is, the crankshaft, camshafts, and distributor are not in the right relationship.

You will need to check the crank sprocket and camshaft sprockets, in relation to the marks on them, as here, p 26

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Have a 2000 gmc safari van 4.3, the distributor gears were worn, replaced the gear on the shaft, went to reinstall distributor now engine will not crank over. Is the only way to get the timing back is to...

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Como cambiar distribuidor gmc safari 2001

Remove the distributor cap. Mark the location where the rotor is pointing by making a scratch mark on the distributor housing. Remove the distributor adjusting bolt and bracket. Remove the distributor. Replace with the new distributor by placing the rotor on the shaft and turning the shaft until the rotor aligns with the same place as the mark on the old one. Install the bolt and tighten. Start engine. If your engine does not run, remove the bolt and distributor and turn it 180 degrees and replace.

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My rotor is pointing to 8 insted of 1. Which is 180 degrees from 1, what do i do l.o.l. the two holes on rotor only allow it to go on pointing to 8 and the wire to the dist.wont allow me to turn the...

I am assuming that you have had the distributor out, have reinstalled it, and are now trying to get your engine ready to start. If you have installed your distributor 180 degrees out, you need to lift it back out of the hole, turn your rotor 180 degrees and reinstall it. NOTE: by doing this, you will probably turn the oil pump drive slightly. This will make it impossible to drop the distributor right in. You will need to either turn the pump shaft (if you have the appropriate tool), or go around patiently with your distributor, setting it down in one notch at a time, until it is in the correct position. BTW, I do not know of any GMC product where #8 is 180 degrees from #1, so don't go any further unless you are sure you know what you're doing. #8 is usually right next to #1

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I you have the engine timing specs to hand loosen of the retainer plate bolt and by using a timing light set the timing on the pulley to that specifications
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