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How to find 793D intermittent harsh auto retarder

80% of the time the retarder operation is fine but the other 20% it either holds on for too long or applies itself very harshly,

Posted by Anonymous on

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

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Posted on Jan 02, 2017

  • 23 Answers

SOURCE: 96 Ford Contour CD4E Auto Trans.

The item referred to needing adjustment in the previous reply is called the MLP (manual lever position sensor). It tells the computer electronically that the car is in P, R, N, D, 2,1 (depending on the gear selector) It also allows the car to only be started in P and N for safety.
If it is out of adjustment, the sensor is misaligned with it's reference point on the gear selector rod, which goes into the trans case and pushes/pulls a rod that moves the selector piston/valve. The valve will be in the right place but the computer will say other wise and it controls the shifting with the solenoids.
SOURCE INFO:
{MLP transaxle function: determion desired gear and electronic pressure control (EPC) pressure:
Symptoms: Harsh engagements and firm shift feel, engine may not crank, may downshift to a lower gear, 2nd or 3rd gear operation, transaxle not inicating the proper gear, no 4th gear operation. no manual first gear.}
Another point of interest is the EPC (electronic pressure control)solenoid inside the black side cover.
Failed OFF-maximum EPC pressure, harsh engagements and harsh shifts.

Another possible issue may just worn out clutches if the unit has high mileage or maybe verify fluid level and recent change of fluid. The filter is inside unit and trans has to be removed to change, some Hondas are like this too.

Posted on Jul 29, 2008

bozcro
  • 867 Answers

SOURCE: 07 street glide 15000 miles bad vibration at 1100

have a good look at all the engine mounts, top, bottom and to tranny.maybe a cracked mount.make sure all bolts are tight

Posted on Jul 30, 2009

  • 44 Answers

SOURCE: 2000 Discover TD5 Auto harsh vibration under power at 2000 -2500

The "lift off and it goes away" is the clue I feel. This eliminates engine out of balance issues and points squarely to fueling issues. I would say try a compression test (always a good first start before you try much else) but with plenty of power and no vibration except in the range, probably not a compression issue. So, what's left? Fuel or air is the answer. Check air inlet path is from air filter to turbo and (more importantly) from turbo to intake manifold. Check wastegate on turbo is OK - disconnect the wastegate (it's bolted on to the turbo) hose, then **** on the wastegate hose, you should feel resistance. If not wastegate aneroid has perforated. At this point, I suggest taking it to a LR dealer and get them to pull all the engine codes. If all OK, next step is injectors. It's a common rail diesel and removal is a bit tricky, but if you pull them out, you will often be able to see a single injector with all the carbon deposits around it. If all injectors look the same, suggest that at this point you need to take them to a diesel specialist for testing and calibrating. This process usually cures 70% of diesel misfire problems. The other 30% really requires specialist knowledge of your vehicle's engine.

Posted on Jul 31, 2009

  • 29 Answers

SOURCE: it smells like something is burning smells like

If it smells like an incomplete combustion smell, clean the burner first. I'm assuming it used to work and now doesn't? If it never worked correctly it may have the wrong jet in it. There is a jet for propane and one for natural gas. They do not interchange. If it smells like plastic burning, something probably got past the screen and fell into the burner.

Posted on Sep 28, 2009

ebjebs
  • 197 Answers

SOURCE: harsh shifting on a 4t65e trans how to repair

You can the info you need here also a little of any thing you need to know. http://aa1car.com/

Posted on Feb 28, 2010

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I put a 80-81 Cdi on a 82 xlh, runs but backfires should I advance or retard


probably retard it a bit but I don't think it is the timing
You say it runs and backfires but if the timing was too far advanced it would backfire on starting and be difficult to start
I suspect the fault to be electronic ---like a loose wire on the coil , faulty coil, faulty ignition control module, loose wire at ignition switch, loose ground wire , loose ground wire on battery
look for something that is making and breaking contact at random as that action induces a spark at the wrong time

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the knock sensor adjusts the timing, advances/retards the in case the engine : knocks , retards or diesels

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1989 chevy s10 power window intermittent problem.


Your power windows run on a heat operated circut breaker. When temps get warmer, an old breaker can act up. Try replacing the breaker and see if it cures your problem.

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Ravenheat 80/20 boiler. the boiler looses water pressure but only when working in central heating mode. Boiler holds pressure indefinitely if central heating is not used,hot water can be drawn without a...


Hi, your boilers pressure should be holding 1.5 bar with the relief set about 3. If the pressure is below this the flow switch will cause the boiler to stop as theirs not enough pressure to operate. Another thing, does your boiler have an auto fill system or do you need to plug a hose in to fill it? If its an auto fill system and you lose pressure you could have a leak.

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Effect of wrong timing


cam, well that depends on DIRECTION

retarded would cause, lower compression and power.

advanced can be more power fast but not slow.

really that is what VVT does, runs one way for slow, and other for fast.

why do you ask.

curious

yours is?

why not check compression,

if the belt slipped, most go to RETARD.

can moves fast and cam says, i dont wont to and it slips,

the crank over runs the cam. so very easy, with belt.

it retards and compression can fall from 150+PSI to 80,

and engine acts like 1Liter , pip squeak engine.

Jul 13, 2013 | 2003 Honda Stream

1 Answer

Hello i have a 1993 chevrolet silverado 1500 and i jus replaced the fuel pump and the distributor and now it wont stay running and it back fires can u tell wat might be wrong


Hello theman022002,

Your description would indicate that the timing is off. Possibly when you installed the new distributor you were off a tooth or two. Turning the distributor Will Not adjust the timing.

You will need to reinstall the distributor with every thing set to top dead center, then follow the steps below to set the proper cam retard offset.

Good Luck.

Ignition Timing: Adjustments

TEST PROCEDURE
The ignition timing cannot be adjusted. The distributor may need adjusting to prevent crossfire. To insure proper alignment of the distributor, perform the following:

1. With the ignition OFF, connect the scan tool.
2. Start the engine. Allow the engine to idle until the engine reaches normal operating temperature.

IMPORTANT: Cam retard Offset reading will not be accurate below 1,000 RPM.

3. Increase engine speed to 1,000 RPM while performing the following steps.
4. Use the scan tool in order to monitor the Cam retard Offset.
5. If the Cam retard indicates a value of 0 degrees, the distributor is properly adjusted.
6. If the Cam retard does not indicate 0 degrees, the distributor must be adjusted.

ADJUSTING PROCEDURE
1. With the engine OFF, slightly loosen the distributor hold down bolt.

IMPORTANT: Cam retard Offset reading will not be accurate below 1,000 RPM.

2. Start the engine and raise the engine speed to 1,000 RPM.
3. Use the scan tool in order to monitor the Cam retard Offset.
4. Rotate the distributor as follows:
a. To compensate for a negative reading, rotate the distributor in the counterclockwise direction.
b. To compensate for a positive reading, rotate the distributor in the clockwise direction.
5. Repeat step 4 until 0 degrees is obtained.
6. Turn OFF the ignition.

NOTE: Refer to Fastener Notice in Cautions and Notices.

7. Tighten the distributor hold-down bolt to 3 N.M. (25 lb ft).
8. Start the engine.
9. Raise the engine speed to 1,000 RPM and with the scan tool view the Camshaft retard Offset to verify 0 degrees has been maintained.

Regards,
netvan

Apr 10, 2011 | 1999 Chevrolet Silverado 1500

1 Answer

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Nov 30, 2009 | 2000 GMC Yukon XL

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1993 build Audi 80-B4 2.6E ABC V6 engine. 1. Temp gauge intermittent - some say there was a generic problem with the contact on rear of instrument panel. Is this hard to access ? 2. Starts ,runs, travels...


Can you manually rock the engine by hand? If so then although the mounts look ok the rubber bushing are worn out. It is best to replace with factory ones as aftermarket polybushes will be too harsh for a car that is used as a daily driver.

Aug 16, 2009 | 1992 Audi 80

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Multiple sheets


You can try to clean the retard pad under the feed roll, but for best results you should replace it. Parts are readily available on the web. You should spend around $20 for the pad, and $50 for the feed roll. You may not need the roll. Examine it and see how the tread looks. These parts are easy to replace.

Feb 29, 2008 | Fujitsu fi-5530C Scanner

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