high idle in park
pmwibif
11-06-2010, 11:52 AM
98 trans sport 3.4
idles up to 3k in park, and sometimes 1500 in gear. sometimes it doesn't idle high at all. assuming it's a sensor, should i start with the tps or iac? thanks in advance
idles up to 3k in park, and sometimes 1500 in gear. sometimes it doesn't idle high at all. assuming it's a sensor, should i start with the tps or iac? thanks in advance
rkvons
11-08-2010, 01:15 PM
98 trans sport 3.4
idles up to 3k in park, and sometimes 1500 in gear. sometimes it doesn't idle high at all. assuming it's a sensor, should i start with the tps or iac? thanks in advance
I would do the TPS first. Are there any codes set?
idles up to 3k in park, and sometimes 1500 in gear. sometimes it doesn't idle high at all. assuming it's a sensor, should i start with the tps or iac? thanks in advance
I would do the TPS first. Are there any codes set?
danielsatur
11-08-2010, 01:28 PM
Start with a visual inspection.
1) clean the TPS and IAC controls, electrical connectors, and use dieletric grease for connector electrical connections.
2) Consider a smoke test done for unmeterd air leaks, because she's running lean.
Suspect - Bad plastic, rubber, or seals from the EGR, or PCV system.
1) clean the TPS and IAC controls, electrical connectors, and use dieletric grease for connector electrical connections.
2) Consider a smoke test done for unmeterd air leaks, because she's running lean.
Suspect - Bad plastic, rubber, or seals from the EGR, or PCV system.
pmwibif
11-08-2010, 06:38 PM
already replaced pcv valve and elbow because they were cracked. engine light isn't on, i might be blindly assuming the light works. is there a self-diagnostic procedure on this? i will clean the connectors first, thanks for the tip
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