Question about 1984 Buick Regal

1 Answer

1984 buick regal w/3.8 liter non turbo cranks but doesnt start

I had done some recent work on the car first it was a coolant leak, then while i was fixing that i noticed a fuel leak around the front of the carburetor where the fuel filter threads into it. so i put in a new fuel filter and threaded it back into the carburetor and replaced a section of the fuel line that goes into the fuel filter because it was tweaked. then after that the car started idle rough but eventually evened out so i took it for a test drive, and on my way back the check engine light went on then off and i never seen it again but since i disconnected the battery on this buick being its an OBD 1 it reset the codes so now i cant figure out why it wont start. I replaced the coil and the map sensor because they were no good.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Buick Master
  • 10,484 Answers

Check the coil packs for voltage , the cam position sensor and the throttle position sensor. Put a code reader on it and crank it so any new codes will come up.

Posted on Mar 30, 2017

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 148 Answers

SOURCE: engine stalls

your on the right route but also check egr valve

Posted on Jul 07, 2008

  • 321 Answers

SOURCE: buick lesabre nightmare

Need to get a scan tool and look at the data stream while it is running for alot more info.Also any trouble codes.Sounds like initially,the engine isn't getting any fuel.I would have a pressure gauge connected to the fuel rail on the engine,so i could monitor the fuel pressure while all this is going on.Items to look at on the data stream would be timing,what timing is the PCM commanding for the engine.Also,have you checked for continuos power feed to the coils during this no start condition,and fire at the plugs while cranking.You could possibly still have spark,but maybe it is extremely weak?I have seen bad ignition switches cause weird problems before too.Many things power up through the ignition switch,just a thought.Have also seen bad PCM's cause strange problems..38 volts is a little on the low side for GM.Usually see those at,at least .50 and up,and rise steadily while pressing the throttle,up to just under 5.0 volts.Potentiometer with 5 volt supply.Vacuum leak can be checked with engine running at a steady idle speed,spray brake cleaner all around the intake manifold and listen for engine speed change.

Posted on Jul 31, 2008

  • 321 Answers

SOURCE: buick lesabre nightmare 2

  • The PCM doesn't even see the O2 sensor until engine temp has reached operating temp,the vehicle goes from open loop when cold,to closed loop when warm,where the PCM uses the O2 sensor to measure the rich/lean of the exhaust content,and from that,adjust fuel richness to achieve 14.7 to 1 air/fuel ratio.So when cold,the O2 sensor is out of the picture anyways.When unplugging sensors,it can be deceitful.The PCM has a program whereas,if a critical sensor (such as the mass air flow) is somehow damaged and out of the picture,the PCM will substitue a generic value that will allow the engine to stay running.So,by unplugging the MAF,it did try to run on it's own better than plugged in,there's the problem area.The vehicle is running better with the MAF unplugged,because the MAF is likely bad,and the PCM is substituting it's generic value when it IS unplugged.Something to recheckThe PROM update is a newer program for the PCM,and likely won't fix it unless the PCM is bad.I would try a good used PCM as a last or later resort,because i have seen my fair share of defective PCM's too.I have taken some PCM's apart,and found capacitors that had gone bad and leaked all over the circuit board,mostly Honda and Mitsubishi and Chrysler though.Good luck,keep me posted.

Posted on Aug 01, 2008

  • 255 Answers

SOURCE: buick lesabre no start

Hi you have replaced allmost everything ,(try fuel pump relay)

Posted on Aug 18, 2008

fastboyz
  • 674 Answers

SOURCE: rough idle

fuel filters rarley cause idle problems. i would look at the egr valve or possible vaccume leaks.

Posted on Aug 24, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Freeze plug location front of chevy 5.3 liter engine diag


Hello Richard,

There doesn't appear to be a freeze plug on the front of the block.
They are always located on the lower sides of the block.

If you can see water on the front of the engine do a visual inspection when the motor is off and cold.

Take a rag and dry off any noticeable moisture. Start the engine and let it warm up, carefully check all the areas listed below to see if you can isolate the leak.

The radiator could be leaking and dispersing coolant towards the motor while driving the car. A hose or fitting could be leaking. The intake manifold or thermostat gasket could be leaking. The water pump could be leaking at higher RPM's.





freeze-plug-location-front-chevy-5-3-54wexkdwvmmpnblpmu1rhrg5-5-0_0.jpg

May 13, 2016 | 2001 Chevrolet Silverado

2 Answers

I have a 2001 VW Beetle. I started the car and the engine light was blinking and coolant container was empty, added coolant and the next evening the light came on again. I noticed a leak on the front...


look for a leak from the drain hole under the pump housing, if no leak not a water pump
take the car to a radiator specialist shop and have a coolant pressure test done to determine where the leak is
if it has plastic tanks for the radiator , they split with time and leak under pressure and a pressure test will reveal exactly where the leak is unlike a guess

Nov 06, 2017 | 2001 Volkswagen Beetle

1 Answer

Coolant leak


Could be your water pump is going bad

Mar 09, 2017 | 1997 Chevrolet Cavalier

1 Answer

96 Mercury Villager gas leak from front drviers side


A somewhat common problem on Nissan cars and imports that use clamps for fuel lines. Altho not usually that major.
Often times the rubber fuel hoses leak in very cold weather. The fuel lines going to the tank are on the driver side. So is the fuel filter.
I have to tighten up a clamp every winter on my 98 Villager when the temp drops below 30 degrees.
If the leak is major enough to leave a puddle on the ground you should have no problem finding it.

Jan 22, 2013 | 1996 Mercury Villager

1 Answer

My ford has a leak on the right side front it smells like coolant over a two day period all the coolant leaked on the ground what do i do?


Well depending on what engine is in this vehicle, it could possibly be the water pump that is leaking or possibly a "freeze out" plug on the block. I would say it is more than likely the water pump. If you have no noticeable leaks from any of the hoses or radiator, i would definitely suspect the water pump or possibly the thermostat housing may have cracked and started to leak. My suggestion would be to look at all your hoses carefullly and then check the housings where the hoses connect to the engine block, if no signs of coolant are present, check around the water pump for noticeable coolant leaks. Hope this helps in your search for that coolant leak.

Sep 27, 2012 | 2001 Ford Expedition

1 Answer

I have a 98 dodge caravan - when filling up recently, I noticed gas leaking from just in front of the tire below where you fuel up. I drove it home from the gas station (aprox .5 miles) and the leak h


It sounds like a leaking filler hose. Not uncommon, and not a big problem to fix, although getting the old cracked hose off and a new one installed can be a dirty and frustrating job. After investigating, you may find a previous owner had once pulled the tank off and just forgot to tighten up the filler hose clamps. , as if fantasy could ever come true.

Jun 18, 2012 | 1998 Dodge Caravan

1 Answer

Coolant leak at intake


If you have coolant showing up where it is not supposed to be, that is usually not a good sign. Coolant flows around the engine... to do what it is called... cool. You say intake as in FUEL/AIR intake? ... If that is the case, do you notice the coolant level in the resevoir dropping? If it is you have more than likely either a cracked engine block ... (very bad) or somewhere in the hoses there is a small leak, and it would be an easy fix.... just find it

Mar 09, 2011 | 2002 Pontiac Grand Am

1 Answer

I have a 1998 grand cherokee laredo... recently i noticed a slight hiss noise while diving. when i put my foot on the bake its stops but after im done braking the hiss noise increases then slowly goes back...


rubber around what pump is ripped? Wherever it's leaking you need to fix that. Locating the actual leak can be done by putting a short length of hose to your ear and using the other end as a probe. As you get nearer to the leak source the hose will allow you to pinpoint it to an exact location.

Oct 19, 2009 | 2000 Jeep Grand Cherokee

2 Answers

Mercedes ML270 cdi dIESEL LEAK


hello,seems you have a loose clamp in fuel hose or your fuel hose have crack in area of clamp,also you can visual check fuel supply line,fuel filter up to primary pump,ty

Apr 29, 2009 | 2002 Mercedes-Benz M-Class

1 Answer

Coolant leak/ squeak/ no heat


The squeak you hear is because coolant is leaking onto the belt making it slip and that is the squeak you hear. The reason your heater isn't working is because the coolant is low enough that it isn't able to circulate through the heater core and heat your car. If you are losing a gallon of coolant a week, I would guess you either have a coolant hose with a leak or your water pump is going bad and starting to leak. It could be getting weak which also would cause you to not have heat. I would get it fixed soon before the pump shells out on you and your engine overheats which could cause more damage to the engine.

Good luck

Mar 28, 2009 | 2008 Cadillac Escalade

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

84 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

Marvin
Marvin

Level 3 Expert

83843 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22413 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...