SOURCE: 1999 oldsmobile delta battery changed but won't power on
If everything else checks out Ok in the ignition system (electrical) and if the engine and transmission turn freely,that sound like you might have starter drag.Check to see if you have good connections at the starter.I know its new but check your battery for 12 volts,good connections,ect.
SOURCE: engine check light is on
does the car buck on the highway when accelerating under a slight load?
i owned one of these exact cars,3.8 litre.
2 problems. one,the baffles braek in the gas tank,and if you run 1/4 tank or less it will stall in a turn.
mine it was a right turn.
2nd problem,the EGR valve was stuck and it would surge or "buck" on the freeway.
replaced the egr (exhaust gas return)valve and it ran like new.
if the egr valve is code 42,(i do not have the manual in front of me) you have found the problem
check the egr,it can cause the problems you have.
SOURCE: 1988 Oldsmobile Delta 88' car stalls out. Coil
Check the spark on each plug wire with a calibrated spark tester.One can be bought at most parts stores.If two plug wires that are next to each other are bad then replace coil pack.There may also be a bad ignition module.Also check the crankshaft position sensor.
SOURCE: Delta 88 oldsmobile speedometer going out
HI. If your speedometer needle doesn't move, or if it flutters, your speedometer cable may be bad.
To determine if it is the cable, disconnect the cable casing from the transmission and from the back of the speedometer on the instrument panel. Draw the cable out from inside of the casing. The cable looks like a twisted piece or wire. If the cable is broken or if it is dry or brittle. It probably needs to be replaced. If the cable is intact and the same length as the cable casing, the problem is likely the speedometer head.
I would also advise to check the speedometer gear as well.
The speedometer gear is located on the output shaft. Inspect it for damage.
This gear rarely suffers damage because the gear from the speedometer that meshes with it is usually made of a softer material. Sometimes, the speedometer gear on the main-shaft is replaceable. A clip can hold it in place or it can be a pressed fit. A special puller is available to pull these gears on the car.
SOURCE: 1983 Delta 88: how much MPG does a 1982 Oldsmobile delta 88 royal...
Personal experience between 13 - 20 for most models with the v-6 and v-8. the 5.7l is about the most fuel efficient at roughly 17
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