Cars & Trucks Logo

Related Topics:

Abel Casas Posted on Jan 17, 2016
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

How do you check if you have compression on a 84 porsche 944

1 Answer

montehammons

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.

  • Porsche Master 5,531 Answers
  • Posted on Jan 17, 2016
montehammons
Porsche Master
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.

Joined: Sep 14, 2011
Answers
5531
Questions
2
Helped
1643266
Points
17401

You have to buy or borrow a compression gauge tester. It threads into the spark plug hole; so you pull all the plugs out, then check each cylinder's compression. The proper way is to first disable gas and spark, put the tester into the first cylinder, then crank the engine over a set number of times- the same amount of cranking for each cylinder, so all get a balanced test. While cranking, hold the accelerator pedal all the way to the floor-this lets the engine breathe normally, getting all the air available. then compare your compression readings: a good healthy engine will have all cylinders pretty even, in the range of somewhere between 150 psi-200 psi. Low compression readings means compression is being lost somewhere, like worn piston rings, bad head gasket seal, or valves not sealing.

Wondering if you have any compression at all? Hold your finger over a spark plug hole while someone briefly cranks the engine over. You can tell if there's any compression at all-you will feel the pressure build up under your finger. Rent or buy the gauge tester to get a true reading of your compression.

5 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Oct 07, 2008

SOURCE: porsche 944 electric fan keeps running even when ignition is turned off

Replace the cooling fan relay, another person had the same issue, that's waht it was.

Ad

scj103

  • 104 Answers
  • Posted on Jan 30, 2009

SOURCE: 1985 944 porsche speedometer stop working

First place to look is behind the dash. Its unlikely to be the 'sensor', as its a cable driven speedo...this would suggest the dashboard panel is falling to bits...you may be able to pick up a scrap on from somewhere...

daves944

Dave C

  • 1050 Answers
  • Posted on Feb 04, 2009

SOURCE: 1985 Porsche 944 vibration in engine

It is a common problem for the seals in the oil cooler to leak and allow water into the oil. I'd check this first, there should be a procedure online somewhere. Try googling "clarks garage"

kirtec auto

  • 1348 Answers
  • Posted on May 27, 2009

SOURCE: '87 Porsche 944 Turbo Airbag Light blinking incl. the "!" on dash

check the abs pump fuse .the abs pump or a sensor could trigger it. get a scan done...the code will tyell you what is wrong

Anonymous

  • 12 Answers
  • Posted on Jul 29, 2009

SOURCE: Porsche 944 final drive ratio change

change the pinnion and gear in the differential

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Can a 85 porsche 944 AFM work on a 84 porsche 944

Great question but this is the wrong category, go to car audio category.
0helpful
1answer

84 porsche 944 replaced new spark plugs and wires,cap,rotor,coil,emc,DME relay,fuel pump, reference speed sensors, new battery, and still no start. Any suggestions is what to do next?

Not much left unchanged is there and no doubt you have done compression testing on all 4 cylinders as well. (If not you need to). I assume it is cranking over normally with the starter motor but not firing.

I would try one of the Porsche Owners Forums for this as one of the other 944 owners there should be able to help..... Like this one..................

Porsche 924 944 968 Technical Forum Pelican Parts Technical BBS
0helpful
1answer

Is it best to check fuel pump and fuel lines with engine on or off on a 84 porsche 944

ENGINE 'OFF', BUT CONTACT 'ON'. YOU WILL HEAR THE PUMP IF IT WORKS.
1helpful
1answer

On a 84 porsche 944 what is best to do when emptying all gasoline as after car has been sitting

Drop the gas tank clean out put back in change fuel filter check pluggs cables wires then start
0helpful
1answer

Where is flasher relay on 84 porsche 944

hello there
if you send me an email to [email protected]
i will send you the list of the relays and fuses in picture

proporsche
0helpful
2answers

'84 porsche 944 cranks, chokes and dies

check your air filter sounds like it is starved for air possibly
Not finding what you are looking for?

260 views

Ask a Question

Usually answered in minutes!

Top Porsche Experts

ROBERT GARCIA
ROBERT GARCIA

Level 3 Expert

926 Answers

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

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

Answer questions

Manuals & User Guides

Loading...