fullymatted.
Back to search
911uk

Will not crank when hot!

Add to repair workspace
Open repair workspace
Original source
7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWill not crank when hot!

Reported repair

Install £25 heat shield and problem is

Reported resolution
1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report a fix
1

1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported fix · Original poster

Fitted a £25 heat shield and problem is solved - bit tricky to do and I guess I will need a new SM eventually but so far all is well.

Will not crank when hot!
Read full discussion summary

Leading evidence: 'Install £25 heat shield and problem is' (1 discussions report resolution; 0 report an unsuccessful attempt). Across 1 matching discussions, The most frequently discussed action is 'Install £25 heat shield and problem is' (1 discussions). For that action, 1 discussions report a resolution and 0 report an unsuccessful attempt. The most frequently reported fix is 'Install £25 heat shield and problem is', supported by resolution reports in 1 discussions. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 7 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace battery (bosch silver) and the car (996 -1998) refuses

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I have recently (yesterday ) replaced the battery (Bosch silver) and the car (996 -1998) refuses to start when hot - the starter will barely turn the engine - symptoms resemble a "flat" battery but leave it for half and hour and she bursts into life - car is in daily use (only bought it last week).

Will not crank when hot!

Check whole engine over many times)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Hope that helps ( Mine does it aswell btw and i have checked the whole engine over many times)

Will not crank when hot!

Use (only bought it last week)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I have recently (yesterday ) replaced the battery (Bosch silver) and the car (996 -1998) refuses to start when hot - the starter will barely turn the engine - symptoms resemble a "flat" battery but leave it for half and hour and she bursts into life - car is in daily use (only bought it last week).

Will not crank when hot!

Use later starter motor (90> spec)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

There is a guard u can buy for it, Or, use the later starter motor (90> spec) which was slightly smaller.

Will not crank when hot!
Frequently discussed actions (5)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Install £25 heat shield and problem is

1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report a fix
1

1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported fix · Original poster

Fitted a £25 heat shield and problem is solved - bit tricky to do and I guess I will need a new SM eventually but so far all is well.

Will not crank when hot!

Check whole engine over many times)

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Hope that helps ( Mine does it aswell btw and i have checked the whole engine over many times)

Will not crank when hot!

Replace battery (bosch silver) and the car (996 -1998) refuses

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I have recently (yesterday ) replaced the battery (Bosch silver) and the car (996 -1998) refuses to start when hot - the starter will barely turn the engine - symptoms resemble a "flat" battery but leave it for half and hour and she bursts into life - car is in daily use (only bought it last week).

Will not crank when hot!

Use (only bought it last week)

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I have recently (yesterday ) replaced the battery (Bosch silver) and the car (996 -1998) refuses to start when hot - the starter will barely turn the engine - symptoms resemble a "flat" battery but leave it for half and hour and she bursts into life - car is in daily use (only bought it last week).

Will not crank when hot!

Use later starter motor (90> spec)

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

There is a guard u can buy for it, Or, use the later starter motor (90> spec) which was slightly smaller.

Will not crank when hot!
Actions with reported resolution accounts (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Install £25 heat shield and problem is

1
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report a fix
1

1 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported fix · Original poster

Fitted a £25 heat shield and problem is solved - bit tricky to do and I guess I will need a new SM eventually but so far all is well.

Will not crank when hot!
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 911uk: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T033922Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have recently (yesterday ) replaced the battery (Bosch silver) and the car (996 -1998) refuses to start when hot - the starter will barely turn the engine - symptoms resemble a "flat" battery but leave it for half and hour and she bursts into life - car is in daily use (only bought it last week). everything else appears normal...... any ideas? Starts easily when cold.

POST 2 / ORIGINAL POSTEROriginal post

Wont Crank when hot (just like my wife!) just found this on the web.....refers to another make of car but seems to make sense - any thoughts? Arr this is a realy common problem!! and simple! The starter motors were mounted far to close to the exhaust down pipe (just look at it) This caused them to get sluggish when hot because they overheated, over the years it takes its toll on it! There is a guard u can buy for it, Or, use the later starter motor (90> spec) which was slightly smaller. Hope that helps ( Mine does it aswell btw and i have checked the whole engine over many times)

POST 3Original post

This has been mentioned on the forum a few times before, Admin is it possible to do a search on the old forum?

POST 4Original post

http://www.911uk.com/viewtopic.php?t=14408&highlight=starting This may help

POST 5 / ORIGINAL POSTEROriginal post

hot start problem.... Many thanks - but my problem relates to a lack of umph at the starter motor - engine simply will not turn when the engine is hot! --- having said that today it was a bit better and did start - still slugish SM - think I will get new one and hope for the best!!! Thanks for your help.

POST 6Original post

Doesn't make any sense that the starter motor is sluggish when the engine is hot; surely it is easier to turn a hot engine over as the oil etc will be thinner. Your theory on heat somehow affecting the starter motor itself may be correct.

POST 7 / ORIGINAL POSTEROriginal post

Heatshield for starter.... Fitted a £25 heat shield and problem is solved - bit tricky to do and I guess I will need a new SM eventually but so far all is well. Not surprised that the starter gets hot - it is located directly on top of the engine - just right to slowly cook it!!!! ps I managed to get hold of a Porsche 996 workshop manual (1000 + pages!) which is a fabulous source of essential information!!!!!

This is a source reference. Confirm exact model applicability in the original material.