Skip the auto shop - Our mechanics make house calls

Q: Starting

asked by on

Have a modified Toyota pickup, was fuel injected now has a carburetor. When cold weather, 40 degrees or below, will start run for 20 seconds or so, then die out and will not start again. Later when weather warms up, 40 degrees or above, starts right up and runs great. It has a webber carburetor, I don't believe it has a computer.

My car has 240000 miles.
My car has a manual transmission.

Hi there. We typically do not offer repair or maintenance on aftermarket part upgrades or modifications. However, in this case, it is very likely that your issue is caused by a restriction of fuel inside the fuel lines when it gets cold. One item that is often overlooked when swapping from fuel injection to a Webber-style carburetor is the fuel pump. In general, a fuel injection system typically has higher fuel pressure than a carburetor. When it gets cold, fuel will generally flow back to the tank, which makes the initial priming of gasoline difficult. Sometimes installing a fuel pressure regulator close to the fuel filter will help improve fuel pressure to the carb and help to improve this problem. In other cases however, the problem can be with squirter’s on the Carburetor being clogged; which also can cause the starting issue. You might want to search online for Toyota owner forums that address similar modifications as yours to seek their advice.

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

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: Multiple issues

Hi There, It sounds like you may have a few different issues going on. As you know, the purpose of the RPM gauge or tachometer is to read the rotational speed of the crankshaft in the motor. This is now...

Q: Failure to catch or switch gears, belts turning and car has power ect, but won't switch into any gears. Transmission/engine fluids are ok.

Hi there. I have seen this same concern while I was employed at a Toyota dealership. This sounds like the transmission has failed internally; most likely the internal brake band, solenoid, or valve body has failed. The transmission will ultimately...

Q: I have a ton of white smoke from my truck when i start and run it, is that likely a head gasket problem?

Hello there, many faults will cause white smoke to be seen on startup with your 1988 Toyota Pickup. When white smoke it seen it indicates that coolant is being burned in the engine, this is not a normal operation. There...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.