Skip the auto shop - Our mechanics make house calls

Q: no start issue 1990 ford ranger custom v6 2.9l automatic RWD

asked by on

so, i just bought this truck, drove it around the block to diagnose power loss issue, which was a blown cat. so im gonna custom build the exhaust but cant start it now after removing the O2/AFR sensor only part of the exhaust connected are the manifolds, its getting spark, but idk how old the plugs are or if they are fouled, its also getting fuel and pressure, not sure psi, but it sprays fuel from the test nozzle. and the pump does turn on. it has compression and timing is still good. im just at a stand still..

My car has 140000 miles.
My car has an automatic transmission.

A: If, by chance, the fuel has been in the fue...

If, by chance, the fuel has been in the fuel tank "for a while", it won’t burn, at least not in an engine. So, the first thing to consider is the age of the gas. The plugs do have to be inspected and possibly replaced, as you have noted. So, I would follow-up with the plugs. If the fuel is fresh, the plugs are new and you see a spark, and the injectors are delivering fuel (check each injector), that means one thing and one thing only: the air fuel ratio is wildly off, making ignition of the mixture impossible. Double check the timing because if that is way off the car won’t start. To rule out the possibility of a too lean mixture at cold start (when the coolant temperature sensor typically sends a signal to enrich the mixture), try spraying a little starter fluid into the intake while cranking and see if the engine starts and runs. If it does, check the sensors that provide inputs to the PCM to enrich the mixture when cold (could be temp sensor, cold start injector, etc.). If you desire that a certified mechanic from YourMechanic resolve this no-start problem for you during a mobile visit to your home, by all means, please request a Diagnostic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My Car Isn't Getting Spark. I've Changed The Fuel Pump, Spark Plugs, Wires, Cap And Rotor

Hi there. I've encountered this situation multiple times. A no spark condition on this vehicle can be caused by a few different things, including the crank position sensor, the cam position sensor, the ECM, the coil, a fuse, and a...

Q: Car won't start

There are many reasons as to why the car may no start, some of which may be related to various sensors. The most efficient way to approach something like this is often times to have the car's computer scanned using...

Q: Which Gas Stations Are the Best?

All gas stations in the US are regulated to the point where there are none that sell subpar gas that could cause damage to the engine or fuel system. Every legitimate gas station will sell usable fuel, but some major...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...