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1978 ford mustang emission

Where do the air pump hose go

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Which motor does it have. You would do well to get a Haynes repair manual (like mine). It's full of all kinds of goody information. Or Chilton if you prefer. And after glancing through mine, I strongly suggest it as there are multiple air hoses, vacuum lines and redundant systems involved, regardless of the engine.

Posted on Nov 14, 2014

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Posted on Jan 02, 2017

gabrielsimut
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SOURCE: 1978 Ford Mustang II 2.8L V6 Thermostat Replacement.

back

Posted on Jul 23, 2008

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SOURCE: 1995 Ford Mustang Fuel Siphon Problem

it should have a guard where it goes into the tank to prevent people from stealing gas. my recommendation is A. try a long skinnier hose and dip it down as far as possible and then retrieve it and see if the end is wet with fuel. B. drop the fuel tank.

Posted on Aug 24, 2009

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czaa
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SOURCE: valve adjusting procedure 1978 ford mustang V-6

1st u need a manual from store or library then proper tools-each piston has to be put at top dead center and the sequence is explained-u never want valves too tite or loose cause it can hurt the motor--u may want to get someone experienced to guide you

Posted on Aug 20, 2010

redds55
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SOURCE: have a 92 ford f150, the emissions canister has

Fuel tank vent

Posted on Apr 22, 2011

ZJLimited
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SOURCE: Where is the fuse located for the secondary air pump for the 2000 Ford Mustang 3.8

Hi there:I suggest to check on the Power Distribution Box, that is located in the engine compartment.The power distribution box contains high-current fuses that protect your vehicle's main electrical systems from overloads.

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DTC P0171 - System Too Lean (Bank 1)This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.


A code P0171 may mean that one or more of the following has happened:

  • The MAF (Mass Air Flow) Sensor is dirty or faulty
    Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor
  • Possible cracked vacuum or PCV line/connection
  • Faulty or stuck open PCV valve
  • Failed or faulty oxygen sensor (bank 1, sensor 1)
  • Sticking/plugged or failed fuel injector
  • Low fuel pressure (possible plugged/dirty fuel filter!)
  • Exhaust leak between engine and first oxygen sensor


Possible solutions, a lot of times, cleaning the MAF sensor and finding/fixing vacuum leaks fix the problem. If you're on a tight budget, start there, but that may not be the fix for certain. So, possible solutions include:
  • Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
  • Inspect all vacuum and PCV hoses, replace/repair as required
  • Inspect all hoses and connections in the air intake system
  • Inspect and/or test the intake manifold gaskets for leakage
  • Check for a dirty fuel filter and proper fuel pressure
  • Ideally you'll want to monitor short and long term fuel trims using an advanced scan tool
  • If you have access, you may want to run a smoke test


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Posted on Aug 22, 2012

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1 Answer

I have this code on my 1999 mustang v6 3.8 P0411 its the secadary air flow incorrect flow i replaced the egr vavle, vac. tubes spark plug wires the fuel filter. i just order the air/smog pump could that be...


The secondary air pump has failed and will need to replaced. The pump is an emissions component meant to help with cold start emissions. Replace it, clear the code & you should be fine. I hope this information was helpful.

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Vacuum diagram for 78 chevy c10 pu 250 inline 6


1978 Chevrolet Truck C10 1/2 ton P/U 2WD 4.1L 1BL 6cyl

zjlimited_881.jpg

Fig. 14: Vacuum hose schematic - 1978 250 engine, light duty emissions (except California)

zjlimited_882.jpg

Fig. 15: Vacuum hose schematic - 1978 250 engine, light duty emissions (California)


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"DTC P1414 indicates electric AIR pump commanded off, but PCM indicates electric AIR pump is on."

"Possible Causes:
-- Open EAIR circuit.
-- Open AIR pump ground.
-- EAIR circuit short to power.
-- Damaged AIR pump.
-- Damaged solid state relay.
-- Damaged PCM."

That's from the service manual. Between you and me? They EAIR system is a POS. In my day, I've wrestled this Ford demon several times. We're talking about emissions on a computer-controlled car, here. Sadly, there's generally no easy fix. Get it to a (not a scan tool) diagnostic tool.

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Obd code of p0411 on a 1999 ford mustang 3.8 v-6 what do I check to correct


That's s failure of the secondary air pump. It'll have to be changed. It's an emissions component meant to help with cold start emissions. It won't cause engine running trouble but at inspection time you'll fail for smog. Change it before then and you'll be fine.

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possible but could be head gasket or valves , or worn rings and is by passing the pistons going straight out the end ...or maby settings are wrong ? try carb cleaner and inspect visually air-filter etc.

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THESE TYPE CAN TRAP AIR DURING REFILLING, TRY REMOVE CAP ON PUMP, START ENGINE, SLOWLY TURN STEERING WHEEL, RIGHT - LEFT, CHECK FLUID FREQUENTLY WHILE DOING THIS, THIS SHOULD PURGE SYSTEM OF AIR .

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