I replaced the vacuum transducer - pressure on turbo is fine. still had power loss - had exhaust cat and manifold box replaced - exhaust blocked - still power loss at times - why do you suggest I replace the brake light switch?
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hi.fault codes indicate feul presure or leaks.if feul presure is ok and no vacuum leaks at vacuum pipes intake manifold or brakebooster it can be a exhaust leak if no leaks it can be a blocked cat or not enough back presure like exhaust box removed or cat insides removed .hope this helps
defective catalytic convertor. It may be plugged up.Make sure ALL the exhaust line from intake manifold(at engine block) to final exhaust pipe are not clogged up.You have reverse exhaust pressure going back towards engine manifold.
run fault codes to check for sensor fault. have a fuel pressure test done on the fuel manifold to check for pressure regulator/ pump/ filter problems. Check cat converter to failure and blocking the exhaust system
It is on the driver's side of engine, mounted onto the intake manifold-right in the middle of the manifold, but on the side. It has a removeable metal tube on it coming from the exhaust manifold.
With the egr valve, there may be an attached "egr valve vacuum transducer"-a little device only there to increase or decrease the vacuum signal to egr valve, based on the amount of back-pressure in the exhaust. The transducer valve has a vacuum hose from the engine, a hose from transducer to the egr valve, then another hose from bottom of transducer valve to monitor exhaust backpressure. Do not worry about the transducer valve when servicing the egr valve.
Chrysler Concorde 1993-1997 3.5L MFI 6cyl Exhaust Gas Recirculation System Operation This system reduces the amount of oxides of nitrogen (NO
) in the exhaust by allowing a predetermined amount of exhaust gases to
recirculate and dilute the incoming fuel/air mixture. The diluted
air/fuel mixture reduces peak flame temperature during combustion,
which in turn inhibits the production of Nitrogen oxides. The principal components of the system are: - EGR tube (connects a passage in the intake manifold to the exhaust manifold) - EGR valve - Electronic EGR Transducer - Vacuum hoses
Component and System Testing
Check the condition of all of the EGR system hoses and tubes for
leaks, hardening or kinks on the rubber hoses. Repair and correct these
conditions before proceeding any testing.
Be sure that the hoses at both of the EGR valve and EGR valve control are connected to the proper fittings.
Be sure the electrical connector is firmly attached at the valve control.
To check the EGR system operation, connect the DRB III scan tool
or equivalent to the 16-way data link connector. The data link
connector is located on the lower edge of the instrument panel near the
steering column. Follow the scan tool instructions.
After checking the system with the DRB III scan tool, proceed to the EGR valve leak and control tests, then repair as necessary.
Removal & Installation EGR Valve and Transducer
EGR valve and transducer assembly-3.5 engine
The EGR valve attaches to the back of the cylinder head-3.5L engine
Loosen, but do not remove, the EGR tube to intake manifold screws
The EGR valve attaches to the rear of the right cylinder head.
Remove the vacuum tube from the electric EGR transducer solenoid.
Inspect the vacuum lines for cracking, poor seal due to hardness, or
other problems. Replace with new hoses if necessary.
Remove the electrical connector from the solenoid.
Slide the transducer up and out of the mounting bracket.
Loosen, but do not remove, the EGR tube to the intake manifold screws.
Remove the EGR tube lower screws at the valve.
Remove the EGR valve and transducer.
Clean both gasket surfaces and check for any signs of leakage or
cracks. Replace the components if any such damage is found or if the
valve fails the tests.
Loosely install the EGR valve and a new gasket onto the cylinder head.
Using a new gasket, attach the EGR tube to the valve and tighten the screws to 95 inch lbs. (11 Nm).
Tighten the EGR tube to the intake manifold plenum screws to 16 ft. lbs. (22 Nm).
Tighten the EGR valve to the cylinder head screws to 16 ft. lbs. (22 Nm).
Reconnect the transducer solenoid to the vacuum fitting on the manifold.
Slide the transducer into the bracket.
Reconnect the vacuum lines and electrical wires to the EGR transducer.
The 100 series td is boost limited for 1st gear , this was a factory design to stop consumers getting overexcited at the traffic lights etc! If you think you are getting no power or boost in first (which would be odd) then connect a boost gauge to the turbo pressure vsv (vacum switching valve) on the intake manifold to see what sort of pressure you are getting.
All this can get a little bit involved ie type of motor 1hdt,1hd-fte etc etc, repost if you need further.