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First scan the OBDll system to see if any codes are present. You should be looking to see if a P0400 type of code is present. If it is , it would indicate that there may be a problem with the emission system in the car. It is possible that the evaporative system is not allowing the fuel tank to vent properly. This could be due to the vent solenoid not working or a vent line that is blocked. Good luck
code p0400 refers to exhaust gas recirculation(EGR) system---flow malfunction.===causes---hose leak/blockage--basic setting not carried out (if applicable)---wiring---EGR valve ---EGR solenoid---ECM
check out the valve and solenoid.
P0400 (EGR flow malfunction), P1333 Make sure about this code its a chevy code so you will need to recheck,If anything the EGR is stuck open.Or you are dealing with a vacuum leak causing rough idle
P0400 - Exhaust Gas Recirculation Flow Malfunction The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The powertrain control module (PCM) determines how much based on engine load, temp, and other conditions. If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set.
No symptoms will likely be noticed by the driver other than the MIL (malfunction indicator lamp). However, non visible symptoms will be increased combustion temperature and increased Nox emissions. A code P0400 may mean that one or more of the following has happened: - Plugged EGR passage which restricts the flow of exhaust gasses - Faulty EGR solenoid - Faulty EGR solenoid wiring/harness - Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve - Faulty EGR valve
the code p0400 is not a fuel leak but a lack of the fuel tank to hold a vaccum. it is possibly one of three things : abad cap :a bad evap solenoid : a bad canister dump valve. most of these would need to be check by a tech to determin which one.
the ets is usualy an abs problem with the lite on it should turn the abs off
i have 2003 trailblazer ltz 153 000 mileage i have code po440 .i changed gas cap and turned off the chech engine light... i made 300 miles and it was good and today morning i drove a mile and light turned on ..... what do i have to fix ...thanks
P00A0 is a factory readable only code (i.e. only ford dealers have the computer to read it)
the P0400 is a generic E.G.R. flow restriction code. so yes a dvom (multimeter) and a vacuum pump to diagnose it correctly, also check for loose wires as ford harness connectors are known to fail alot due to crappy phenolic content in the plastic and heat combined they can warp and / or corrode the contacts
HI P0400 :- (EGR) exhaust gas recirculation system -flow malfunction the mine function of this system is economy of fuel and keep clean air with low emission of bad gases and hydrocarbon by recirculate the exhaust gas to the engine intake to re burn the unburnt fuel the problem cause from :- hose leak \ blockage , wiring , EGR valve , EGR solenoid , ECM
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