Skip the auto shop - Our mechanics make house calls

Q: Difficult start with hot engine, shutting off at start - 1990 Pontiac Grand LeMans

asked by on

When I attempt to start the car with cold engine, it starts up immediately. However, if I drive the car for a while and park it briefly, it cannot be restarted right away. It would start, but shut off quickly. When the engine is warmed up, it takes several tries to get it started. I had the codes read and several appeared. These include: code 15 coolant temperature low; code 42 electronic spark timing issue; 32 EGR failure; and 44 engine running lean. What do you suggest I should do first?

Hello there, thanks for writing in. You may have a few different things going on with your 1990 Pontiac Grand LeMans. These codes are most likely all related and have a few common causes. The most likely causes for this would be a stuck, open, or faulty thermostat, coolant temperature sensor, vacuum leak, spark plugs, exhaust leak, or an oxygen sensor. A certified automotive technician such as one from YourMechanic will perform a check engine light is on inspection and diagnose the fault performing any repairs required.

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
  • Home
  • Questions
  • Difficult start with hot engine, shutting off at start - 1990 Pontiac Grand LeMans

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: Backfire - 1993 GMC C2500 Suburban

Hello, thanks for writing in. The engine should be checked to make sure it has spark from the coil. If not, then check the coil for a signal from the ignition module and replace the ignition module and coil. If...

Q: Leak under car

Hello. It sounds like there may still be a coolant leak which could explain why the engine needs coolant light comes on a few days after adding coolant. A certified mechanic, such as one from YourMechanic, can do a coolant...

Q: Car cranks over but wont start. Looking for some answers maybe...

There are several possible causes for a vehicle to crank and not start. There could be a bad fuel pump, faulty plugs, bad timing belt/chain, faulty ignition, failed camshaft/crankshaft sensor, or any number of other possible causes. It would first...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.