Question about 1990 Buick Reatta

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Its a 1990 Reatta to start off, it rough idles and it has problems accellerating sometimes, like the engine pauses when gaining speed for a split second then starts again. I dont think it has anything to do with the coil packs because I just had them replaced along with a couple other things pertaining to them. Im thinking maybe the fuel injection is the problem? Let me know what you think please

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Throttle idle valve by the sound of it this would cause the engine to race on idle or stop and stall but sometimes both on the same acceleration cycle .weird and wonderful happens go on when this starts to play up

Posted on Nov 05, 2010

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You could be right. Fuel pressure could be causing the problem. Possibly a dirty fuel filter. It could also be the Manifold Air Pressure sensor. Or the Mass Air Flow sensor.

Posted on Nov 05, 2010

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1 Answer

Engine runs rough and gets worse when accellerating


PROBLEM TROUBLE AREA
Rough idle, stalls or
hesitate on acceleration :
.Spark plug faulty
. High-tension cords faulty
Ignition problems:
• Ignition coil
• Igniter
• Distributor
. Incorrect ignition timing
Vacuum leaks:
. PCV valve and line.. .
. EGR line..
. Intake manifold.
• Throttle body
• ISC valve
• Brake booster line

• Throttle body
• Brake booster line
. Incorrect idle speed
. Reset timing
. Adjust valve clearance
. Check fuel system . Check air cleaner
. Incorrect valve clearance
. EFI system problems
. Low compression


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1 Answer

Replaced engine now engine idles rough and poor accelleration


check for vacuum leaks and loose manifold / gaskets. Check for correct ignition timing and adjust as required. Check and adjust idle speed (750 rpm )

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1 Answer

I replaced the fuel pump on my 2002 sunfire. It worked great the first day. The next day i needed a litre of oil so i put it in, then when i start the car it will idle but ruffly or stall. So when i put...


yes there is a trottle position sensor.
but first have engine code retrieve if any
if it run rough idle we don't talk tps
spark plugs, wires,fuel pressure if it's good alot of to do
if you have a scanner you could see the data

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there is a good possibility that your engine may have ingested some of that antifreeze and if it did thats one of the reasons why your engine idle is rough the reason why its hard to start is becaus the anti freeze is being compressed by the pistons when you start the engine check the tailpipe for white smoke or an antifreeze smell As far as the stop leak its sometimes a temporary fix for a bigger problem .Check your antifreeze level (when it cools down).for a low fluid level

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After start up,{about 10-mins.] the engine bogs out, No throttle.


i have a 1990 vette doing the exact same thing. i have checked; fuel pressure, replaced fuel filter, checked spark, checked engine vacuum and i still cant seem to get the car to run once it's up to temp. any help on this would be great.

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Rough eratic idling


Check the idle air bypass valve see if dirty, cleanable unit. you check the working of valve by powering the unit with 12 volts. check map sensor too.

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3 Answers

1988 buick reatta runs rough for awhile lacks power and dies


think electrical 1st -the weakest link-bet u havnt had tuneup since yr 1000-inspect plug wires for wear n take off dist cap n look inside-scarry!--of course chec fuel system also in gas tank area

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sounds like you either have a brake light out or you need air in your passenger side rear tire. jk. i wish i could help.

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Buick Reatta Engine Electrical problem


If the ecm has the number 1228253 on it that is your problem. These gave a lot of trouble, get a delco 16198264 or newer number to replace the junk 1228253.

Jul 01, 2008 | 1989 Buick Reatta

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