Question about 1988 Oldsmobile Delta 88

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1988 delta 88 won't start after i changed the harmonic balancer why?

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It sounds like you either damaged the crankshaft position sensor or you left it unplugged.

Posted on Apr 28, 2010

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1 Answer

Replace timing chain


remove radiator and hoses, remove enough accessory brackets to get to water pump, remove waterpump & harmonic balancer, take timing cover loose,loosen oil pan bolts(take about the first 3-4 completely out and loosen the rest), reinstall harmonic balancer bolt and line up timing marks. cylinder #1 at top dead center and valves for cylinder #1 closed. remove harmonic balancer bolt and remove cam gear bolts and crankshaft gear, install is reverse order..

Nov 28, 2011 | 1984 Oldsmobile Delta 88

1 Answer

Fire order for a 1988 delta 88 oldsmobile


There are two different ignition systems for that year, depending on if it is a VIN "C" or VIN "3". Here is the firing order diagrams for both systems.


1988 Oldsmobile Delta 88 3.8 liter engine VIN "C"

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Oldsmobile Delta 88 3.8 liter engine VIN "3"

41d03cd.jpg

Jul 11, 2010 | 1988 Oldsmobile Delta 88

2 Answers

Hi there I have a 1988 delta 88 the problem is that when I start it up and drive it wants to stall out but when the temperature rises it runs alot better not to sure if this is the problem I have replaced...


Could be several issues that are common with GM cars :
  1. Bad MAP sensor
  2. Bad TPS (Throttle Position Sensor)
These are the most common areas that would cause the problem you have.

Aug 13, 2009 | 1988 Oldsmobile Delta 88

2 Answers

Harmonic balancer went bad, replaced it and crank sensor (also adjusted sensor) now have a ticking coming from area. Car now stalls intermittently, also hesitates on heavy acceleration. Could this be the...


Crank sensor is hitting balancer. One of the interupter blades may be bent. 3800's do not have timing chain or gear problems. Now a 3.8 will. Does yours say 3800 on top of engine? These ar two different engines.

Jul 14, 2009 | 1988 Oldsmobile Delta 88

1 Answer

Olds 1988 delta 88 changed harmonic balancer and now odd things happen. Like sometimes when you turn on headlights the windshield wipers come on. Sometimes when idling in park the mileage odometer will...


Sounds like a ground issue. Look for any ground points around the area of the engine where you were. There are several bolts that have ground wires attached on the manifold and head areas.

Jun 23, 2009 | 1988 Oldsmobile Delta 88

2 Answers

Crank sensor


The crank sensor is behind the harmonic balancer. Not too hard to replace, the harmonic balancer is supposed to come right off but I needed a big 2-jaw puller to get it off.... accessed through the wheel well.

Jul 11, 2008 | 1992 Oldsmobile 88

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