1993 Aerostar doesn't fast idle on cold start. Idles fine after warm up. Starts with difficulty when below 32 degrees
Feb 22, 2011 at 2:50 PM
Cold Start Idle
1993 FORD AEROSTAR
JACKKUBAN
- MEMBER
- 1 POST
- FOLLOW
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
Advertisement
Should idle fast at cold start. The computer does this to quickly bring the engine up to temp. It should slowly drop the idle after a minute or so.
Hard starts during cold could be bad gas (use a bottle of HEAT), or a failing fuel pressure regulator. Check it with a fuel pressure gauge. Pressure should be 39-45 psi and hold for at leas 15 minutes after you shut down engine. If it doesn't, bad FPR
Hard starts during cold could be bad gas (use a bottle of HEAT), or a failing fuel pressure regulator. Check it with a fuel pressure gauge. Pressure should be 39-45 psi and hold for at leas 15 minutes after you shut down engine. If it doesn't, bad FPR
Feb 22, 2011 at 3:06 PM
Advertisement