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Carburetor setting

check the float levels. If it is a holley check the power valve for a power valve diaphragm failure. (they burn from back firing) Check fuel pump pressure. replace the needle and seat assy. tighten the seat in the body properly using a fibre washer.

Apr 22, 2013 | Cars & Trucks

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Service engine light is on the p0741 code poped up on 2002 grand prix se

Hi there:DTC P0741 - Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect and/or Replace Various Internal Transaxle Components

There is some service info, that may very well be your problem. here is the info...

Subject: Incorrect Transmission Shifts, Poor Engine Performance, Harsh 1-2 Upshifts, Slips 1ST and Reverse, Torque Converter Clutch (TCC) Stuck Off/On, DTCs P0730, P0756, P0757, P0741, P0742 (Clean Transaxle Valve Body and Case Oil Passages of Debris)

Models: 2001-2005 GM Passenger Cars with 4T65-E Automatic Transmission
2001-2005 Buick Rendezvous
2005 Buick Terraza
2001-2004 Chevrolet Venture
2005 Chevrolet Uplander
2001-2004 Oldsmobile Silhouette
2001-2005 Pontiac Aztek, Montana
2005 Saturn Relay
with 4T65-E Transmission (RPOs M15, MN3, MN7, M76)

Some owners may comment on any one or more of the following conditions:

* The SES lamp is illuminated.
* The transmission slips.
* The transmission does not shift correctly, is very difficult to get the vehicle to start moving or the engine lacks the power to move the vehicle.
* Poor engine performance.

The most likely cause of the various conditions may be chips or debris:
* All years--Pressure Reg. Valve (Bore 1) or Torque Signal Valve (Bore 4) stuck.
* On 2001-2002 vehicles, a plugged orifice on the case side of the spacer plate.
* On 2003-2005 vehicles, restricted movement of the 2-3 shift valves in the valve body.
* On 2003-2005 vehicles, restricted movement of the 3-4 shift valves in the valve body.

Technician Diagnosis and Correction
* The technician's road test reveals the vehicle launches in third or fourth gear (high RPM with slow vehicle acceleration).

* On 2001-2002 vehicles, a DTC P0756 or P0757 may be stored.
* On 2003-2005 vehicles, a DTC P0730, P0741, P0748 or P0757 may be stored.
* Refer to the appropriate Service Information (SI) for additional Diagnostic Assistance.
* With a Tech 2 connected to the vehicle, road test the vehicle and perform the following steps:
If the above symptoms are present proceed with the following steps.
With the valve body removed and on a workbench, carefully push the valve against spring pressure to check if the valve will snap back to the original position. Or for the valves seated in home position, use a small flat-bladed screwdriver and carefully pry the valve off its seat, quickly remove the screwdriver allowing the valve to return to its seat. If the valve does not snap back unencumbered, then the valve will need to be removed from the valve body.
Once the valve is removed, inspect for any scratching or scoring.
If any scratching or scoring is found, then the fingernail test will need to be performed.

Important: It has been found that in most cases that the scratches are not severe enough to catch your fingernail.
Using your fingernail, move over any scratches to see if your nail will catch on the scratch or score.
* If your nail catches in the scratches, the valve will need to be replaced.
* If your nail does not catch in the scratches, continue with the next step.

Important: Clean the valve body with the machined side down so debris may escape.
Clean the valve and bore using brake cleaner.
Blow off with shop air.
To verify free movement of the valve, dip the valve into clean ATF and install the valve back into the appropriate bore. The valve should move freely. If the valve moves freely, in most cases the valve body will function properly when reinstalled.
Reassemble and retest .


(1)Bore 1, Pressure Regulator (Reverse Boost Valve inside bushing)(2)Bore 2, 1-2 Shift Valve, Solenoid "A"(4)Bore 4, Torque Signal Valve, Pressure Control Solenoid(5)Bore 5, Pressure Relief Valve(6)Bore 6, PWM and TCC Control Valve(7)Bore 7, TCC Regulator Apply Valve(11) Bore 11, 3-4 Shift Valve, 4-3 Manual Down Shift Valve(12) Bore 12, 2-3 Shift Valve, 3-2 Manual Down Shift Valve(14) Bore 14, Secondary 1-2 Accumulator Valve(15) Bore 15, 2-3 Accumulator Valve, 3-4 Accumulator Valve(16) Bore 16, Solenoid "B"

Hope this helps.

Mar 04, 2013 | 2002 Pontiac Grand Prix

1 Answer

How do I adjust the ide on 1994 Ford E-250 6 cyl.?

You can either replace the idle air control valve or you can take it off and clean the carbon out of it and clean the throttle body where the IAC valve plunger seats using a non-chlronated brake cleaner.Make sure you reset the computer by disconnecting the ground cable on the battery for 30 seconds.

Jan 26, 2012 | 1994 Ford Econoline

2 Answers

How do you clean the air intake throttle on a 2005 Ford Freestyle?

if its drive-by-wire, remove the intake pipe to the throttle body. have someone get into the driver's seat, turn the ignition ON, and leave ENGINE OFF! have the driver put the acclerator pedal all the way down to the floor as that will open the throttle bodys butterfly valve. Now grab a rag, spray some carb cleaner on the rag and wipe that throttle body's insides clean! be sure whoever is in the drivers seat with there foot on the gas does not let go while your hands are in the throttle body as it can pinch and it does hurt! hope I helped, please rate!

May 12, 2011 | 2005 Ford Freestyle

1 Answer

Car has a tendecy to surge rpm when at idle or first put into gear seems to stop when engine becomes hot

Quite likely to be idle bypass valve. On older Saabs, this was located in two hoses near the throttle body, but now they are usually integral to the throttle body. A quick and low risk way is to remove the bypass valve (unplug the electrical connector first) and clean it and the seating in the throttle body. Try putting the connector back on, turn ignition on, before replacing the valve in the body. It should move smoothly, if it does, then hopefully, you have a cure, if not, try another clean or buy a replacement. If it does move smoothly it wasn't the idle bypass valve and more diagnosis will be required.

Jul 29, 2009 | Saab 9 5 Cars & Trucks

1 Answer

Transmission shifts harsh after driving it 10-15 miles

alright, since the computer sees the transmission slipping, it maximizes pressure to try and compensate. with the 1870 code it is referring to the lockup clutch in the converter. I have seen colleagues remove the TCC (torque converter clutch) valve from the valve body and insert a stiffer spring to remedy the situation, but i have only seen it work effectively once. It almost always resulted in more problems and headaches wither immediately, or a week down the road.

i know its not what you want to hear, but a rebuild will probably be your best bet. hope this helps.

May 12, 2009 | Chevrolet Astro Cars & Trucks

1 Answer

2002 saturn sl1 pcv valve

The PVC valve is located in the valve cover (top "cover" of the engine, near the oil filler cap) On DOHCs, it is immediatly to the right. On SOHCs, it a few inches to the left.The PVC valve is held to the valve cover with a rubber grommet type seat.

1. Remove the hose that connectes the throttle body unit to the PVC valve.
2. Using your hands, remove the PVC valve from the rubber seat. Wiggle it back and forth, then pull it straight out.
3. You can either clean this with carb cleaner, or simply replace it with a new one (<$5 at most auto stores)
4. Put the PVC valve back into the rubber seat and replace the hose

Apr 08, 2009 | Saturn Vue Cars & Trucks

1 Answer

2001 Pontiac Montana Rear heat blows only cold air???

The rear temp blend door is stuck in the cold position ,very common problem on vehicles with rear HVAC units . There is no valve , electric actuator !
Air Temperature Actuator
The air temperature actuator is a 3 wire bi-directional electric motor. Ignition 3 voltage, ground and control circuits enable the actuator to operate. The control circuit uses a 0-12 volt linear-ramped signal to command the actuator movement. The 0 and 12 volt control values represent the opposite limits of the actuator range of motion. The values in between 0-12 volts correspond to the positions between the limits.
When the HVAC control module sets a commanded, or targeted, value, the control signal is set to a value between 0-12 volts. The actuator shaft rotates until the commanded position is reached. The module will maintain the control value until a new commanded value is needed.

You would need to remove the
Quarter Lower Rear Trim Panel
Remove the rear seats. Refer to Rear Seat Replacement in Seats.
Remove the back body pillar trim. Refer to Upper Rear Trim Finish Panel Replacement .
Remove the body side upper trim panel. Refer to Third Pillar Trim Replacement .

Remove the cup holder from the rear quarter trim.
Remove the rear accessory panel from the left side quarter panel. Refer to Rear Accessory Panel Replacement .
Remove the retainer bolt from the seat belt retractor. Refer to Rear Seat Belt Retractor Replacement in Seat Belts.
Remove the upper cargo net retainers. Refer to Cargo Net Replacement in Body Rear End.
Remove the liftgate sill plate. Refer to Liftgate Door Sill Plate Replacement .
Using J 38778 remove the rear quarter trim panel retainers.
Remove the rear quarter trim panel from the vehicle.
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Oct 14, 2017 | 2001 Pontiac Montana

1 Answer

Geo metro transmission

main dealer is your best bet but get all the details of what model it is and chassi number as the parts vary from different models replace all gaskets and all valves not just one or two or you will be doing it again shortly change the oil these parts do wear but cheap oil is the biggest problem yates210456

Aug 04, 2008 | 1993 Geo Metro

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